Writing prompt: Written Expression. Assume you are Lin Chen and have just made a new pen pal named Ted. Please write a letter to him describing your personal background, family situation, and your plan to visit Beijing over the summer. Writing hints: Tian'anmen Square, the Palace Museum, Beijing Roast Duck.
Dear Ted,
________
Welcome to China. Have a good day!
Yours,
Lin Chen

Student essay:
Hi, soI'm happy to write a letter that show you my plan and my family, even me. I'm in the middol school and be a student, I like visit difficute place or country, it's about my plan. My family have my mom and my dad, that all my family, they are very love me, and they make me become glamorous kid. Then, I will go to Beijing, it's my first plan, second, I will go to Tian'anmen Square and the Palace Museum, it's a glamorous place. At last but not least, I will go to eat Beijing Roast Duck. I am happy to show you this.

Corrected essay:
Hi, I'm so happy to write a letter to show you my plan, my family, and myself. I'm in middle school and am a student. I like to visit different places or countries, and it is related to my plan. My family has my mom and dad, and that is all my family. They love me very much, and they make me become a glamorous kid. Then, I will go to Beijing, and it's my first plan. Second, I will go to Tian'anmen Square and the Palace Museum, and these are glamorous places. Last but not least, I will go to eat Beijing Roast Duck. I am happy to show you this.

Error analysis:
error_sentence: Hi, soI'm happy to write a letter that show you my plan and my family, even me.
correct_sentence: Hi, I'm so happy to write a letter to show you my plan, my family, and myself.
error: soI'm
correction: I'm so
error_type: Word Order Error
error_severity: 5
error_description: ① Space Error: According to English writing conventions, a space is required between words; the original sentence 〈soI'm〉 lacks the necessary space, so the conjoined 〈soI'm〉 is separated to comply with English writing conventions.; ② Word Order Error: According to the context, the adverb 〈so〉 modifies 〈happy〉 and should be placed after the be-verb; therefore, 〈soI'm〉 is adjusted to 『I'm so』 to conform to English word order rules.

error_sentence: Hi, soI'm happy to write a letter that show you my plan and my family, even me.
correct_sentence: Hi, I'm so happy to write a letter to show you my plan, my family, and myself.
error: that
correction: to
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to English grammar rules, an infinitive structure is used to express purpose; in the original sentence, 〈write〉 needs to use the “to + base form of verb” infinitive form to comply with grammar rules, so 〈that〉 is changed to 『to』 to correctly express the purpose of writing the letter.

error_sentence: Hi, soI'm happy to write a letter that show you my plan and my family, even me.
correct_sentence: Hi, I'm so happy to write a letter to show you my plan, my family, and myself.
error: and
correction: ,
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English grammar rules, when listing three or more parallel elements, commas are used to separate the initial items and 『, and』 is used before the last item. In the original phrase 〈my plan and my family〉, which is part of a larger list, the 〈and〉 should be a comma. Therefore, 〈and〉 is changed to 『,』 to comply with English grammar.

error_sentence: Hi, soI'm happy to write a letter that show you my plan and my family, even me.
correct_sentence: Hi, I'm so happy to write a letter to show you my plan, my family, and myself.
error: even me
correction: and myself
error_type: Conjunction Error
error_severity: 5
error_description: ① Conjunction Error: According to English grammar rules, when listing three or more parallel elements, the structure 『, and』 is needed before the last element; therefore, the original phrase 〈my family, even me〉 should be changed to 『, and myself』 to comply with English grammar.; ② Pronoun Error: According to the sentence meaning, the intention is to express “myself”; in the original sentence, 〈me〉 is the incorrect form and needs to be the reflexive pronoun 『myself』, so 〈me〉 is changed to 『myself』 to fit the context.

error_sentence: I'm in the middol school and be a student, I like visit difficute place or country, it's about my plan.
correct_sentence: I'm in middle school and am a student.
error: the middol
correction: middle
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to the sentence meaning, it is understood that the intention here is to express “middle”; therefore, 〈middol〉 is a misspelling of 『middle』, and 〈middol〉 needs to be changed to 『middle』 to make the sentence coherent.

error_sentence: I'm in the middol school and be a student, I like visit difficute place or country, it's about my plan.
correct_sentence: I'm in middle school and am a student.
error: be
correction: am
error_type: Auxiliary Error
error_severity: 3
error_description: Auxiliary Error: According to English grammar rules, the intention here is to express “I am a student”, which requires a “subject-copula-complement” structure; in the original sentence, the verb 〈be〉 cannot directly function as a copula and must be determined by the subject; here, the subject is 〈I〉, so 〈be〉 needs to be changed to 『am』 to fit the context.

error_sentence: I'm in the middol school and be a student, I like visit difficute place or country, it's about my plan.
correct_sentence: I'm in middle school and am a student.
error: ,
correction: .
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English grammar rules, the original sentence “I'm in the middol school...” and 〈I like visit difficute place or country〉 have complete subject-verb structures; a comma 〈,〉 cannot be used to separate two independent clauses, so 〈,〉 needs to be changed to 『.』 to comply with English grammar rules.

error_sentence: I'm in the middol school and be a student, I like visit difficute place or country, it's about my plan.
correct_sentence: I like to visit different places or countries, and it is related to my plan.
error: visit difficute place or country, it's about
correction: to visit different places or countries, and it is related to
error_type: Verb Choice Error
error_severity: 5
error_description: ① Nonfinite Verb Form Error: According to English grammar rules, the verb 〈like〉 needs to be followed by an infinitive structure; therefore, 『to』 needs to be added after 〈like〉 in the original sentence to form 『like to visit』 to comply with grammar rules.; ② Spelling Error: According to the sentence meaning, it is understood that the intention here is to express “different”; therefore, 〈difficute〉 is a misspelling of 『different』, and 〈difficute〉 needs to be changed to 『different』 to make the sentence coherent.; ③ Noun Number Error: According to English grammar rules, 〈place or country〉 in the original sentence should use the plural form 『places or countries』 to be consistent with the adjective 『different』; therefore, 〈place or country〉 should be changed to 『places or countries』 to comply with English grammar rules.; ④ Conjunction Error: According to English grammar rules, “I like visit..” and “it's about...” in the original sentence have complete subject-verb structures and, as parallel structures, require 『and』 to connect them to comply with English grammar rules.; ⑤ Verb Choice Error: According to the context, the meaning here is “related to”; therefore, 〈it's about〉 in the original sentence needs to be changed to 『it is related to』 to fit the context.

error_sentence: My family have my mom and my dad, that all my family, they are very love me, and they make me become glamorous kid.
correct_sentence: My family has my mom and dad, and that is all my family.
error: have
correction: has
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: Subject-Verb Agreement Error: According to English grammar rules, there is a subject-verb agreement error in the original sentence; the subject 〈family〉 is third-person singular, and the predicate 〈have〉 in the original sentence is in the third-person plural form; therefore, the verb 〈have〉 needs to be changed to the third-person singular form 『has』 to maintain subject-verb agreement.

error_sentence: My family have my mom and my dad, that all my family, they are very love me, and they make me become glamorous kid.
correct_sentence: My family has my mom and dad, and that is all my family.
error: my
error_type: Word Redundancy Error
error_severity: 4
error_description: Word Redundancy Error: According to English expression habits, a word that appears twice in repetition only needs to be kept once; in the original sentence, 〈my〉 appears twice, so deleting the second redundant 〈my〉 can make the sentence more concise without affecting its meaning.

error_sentence: My family have my mom and my dad, that all my family, they are very love me, and they make me become glamorous kid.
correct_sentence: My family has my mom and dad, and that is all my family.
error: that
correction: and that is
error_type: Conjunction Error
error_severity: 5
error_description: ① Conjunction Error: According to English grammar rules, “My family have...” and 『that is all my family』 in the original sentence have complete subject-verb structures and, as parallel structures, require 『and』 to connect them to comply with English grammar rules.; ② Verb Choice Error: According to English grammar rules, the construction of a sentence requires a predicate; the original phrase 〈that all my family〉 lacks a verb, so 『is』 needs to be added to connect the subject and complement to comply with English grammar rules.

error_sentence: My family have my mom and my dad, that all my family, they are very love me, and they make me become glamorous kid.
correct_sentence: My family has my mom and dad, and that is all my family. They love me very much, and they make me become a glamorous kid.
error: , they are very love me
correction: . They love me very much
error_type: Adverb Error
error_severity: 4
error_description: ① Punctuation Error: According to English grammar rules, the original phrase 『that is all my family』 and 〈they are very love me〉 have complete subject-verb structures; a comma 〈,〉 cannot be used to separate two independent clauses, so 〈,〉 needs to be changed to 『.』 to comply with English grammar rules.; ② Adverb Error: According to English expression habits, 『very much』 is an adverb of degree, usually placed at the end of the sentence; therefore, the original phrase 〈very love me〉 should be changed to 『love me very much』 to make the meaning accurate and the structure clear.

error_sentence: My family have my mom and my dad, that all my family, they are very love me, and they make me become glamorous kid.
correct_sentence: They love me very much, and they make me become a glamorous kid.
correction: a
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: According to English grammar rules, a countable singular noun must be preceded by an article; in the original sentence, the necessary determiner 『a』 is missing before 〈kid〉; therefore, the sentence is modified to 『a glamorous kid』 to comply with English grammar rules.

error_sentence: Then, I will go to Beijing, it's my first plan, second, I will go to Tian'anmen Square and the Palace Museum, it's a glamorous place.
correct_sentence: Then, I will go to Beijing, and it's my first plan.
correction: and
error_type: Conjunction Error
error_severity: 4
error_description: Conjunction Error: According to English grammar rules, 〈I will go to Beijing〉 and 〈it's my first plan〉 in the original sentence have complete subject-verb structures and, as parallel structures, require 『and』 to connect them to comply with English grammar rules.

error_sentence: Then, I will go to Beijing, it's my first plan, second, I will go to Tian'anmen Square and the Palace Museum, it's a glamorous place.
correct_sentence: Then, I will go to Beijing, and it's my first plan. Second, I will go to Tian'anmen Square and the Palace Museum, and these are glamorous places.
error: , second
correction: . Second
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English writing conventions, when the ordinal number 〈second〉 starts a new sentence, the preceding sentence must be separated by a period; therefore, 〈, second〉 is changed to 『. Second』 to comply with writing conventions.

error_sentence: Then, I will go to Beijing, it's my first plan, second, I will go to Tian'anmen Square and the Palace Museum, it's a glamorous place. At last but not least, I will go to eat Beijing Roast Duck.
correct_sentence: Second, I will go to Tian'anmen Square and the Palace Museum, and these are glamorous places. Last but not least, I will go to eat Beijing Roast Duck.
error: it's a glamorous place. At last
correction: and these are glamorous places. Last
error_type: Word Redundancy Error
error_severity: 5
error_description: ① Conjunction Error: According to English grammar rules, “I will go to...” and 〈it's a glamorous place〉 in the original sentence have complete subject-verb structures and, as parallel structures, require 『and』 to connect them to comply with English grammar rules.; ② Pronoun Error: According to English grammar rules, the pronoun 『these』 should be used for plural nouns; in the original sentence, the context mentions two places, so the subsequent word should use the plural form 『these』 to maintain number consistency, thus 〈it's〉 needs to be changed to the plural 『these are』 to comply with English grammar.; ③ Noun Number Error: According to English grammar rules, 〈place〉 in the original sentence should use the plural form 『places』 to be consistent with the two preceding places; therefore, 〈place〉 should be changed to 『places』 to comply with English grammar rules.; ④ Word Redundancy Error: According to English expression habits, 『Last but not least』 is a fixed phrase meaning “lastly, but just as importantly”; the original phrase 〈At last but not least〉 contains word redundancy, so the redundant 〈At〉 is deleted to make the sentence more natural and fluent.