Writing prompt: Using the information provided in Chinese and referring to the picture, write a short essay.
Mr. Cool's Clothes Store is having a big sale with great discounts. Sweaters in various colors are only 30 yuan, shorts are only 20 yuan, and shirts are only 25 yuan. Large bags sell for 35 yuan, and small bags for 20 yuan. There are also many beautiful shoes and skirts available. Welcome to shop.

Student essay:
Mr. cool's Clothes Store is very cheep , The kind of clothes is 30 dorllers. short is 20 dorller. T-shirtis 25 dorllers. big bag is 35 dorllers. smallbag is 20 dorslers, and have got many shoes, skirt.

Corrected essay:
The clothes in Mr. Cool's Clothes Store are very cheap. All kinds of sweaters are 30 yuan each. Shorts are 20 yuan each. T-shirts are 25 yuan each. Big bags are 35 yuan each. Small bags are 20 yuan each. And it has many shoes and skirts.

Error analysis:
error_sentence: Mr. cool's Clothes Store is very cheep , The kind of clothes is 30 dorllers.
correct_sentence: The clothes in Mr. Cool's Clothes Store are very cheap.
error: Mr. cool
correction: The clothes in Mr. Cool
error_type: Sentence Structure Error
error_severity: 4
error_description: ① Case Error: According to English writing conventions and the prompt, 〈Mr. cool's Clothes Store〉 is a proper noun, and the first letter of 〈cool〉 in the proper noun 〈Mr. cool〉 should be capitalized; 〈cool〉 needs to be changed to 『Cool』 to comply with English writing conventions; ② Sentence Structure Error: The original sentence structure is incomplete; according to the prompt, it refers to "the clothes in the store are very cheap," where the subject is "clothes," not "the store"; 〈Mr. cool's Clothes Store〉 needs to be changed to 『The clothes in Mr. Cool's Clothes Store』 to clarify the subject and complete the sentence structure.

error_sentence: Mr. cool's Clothes Store is very cheep , The kind of clothes is 30 dorllers. short is 20 dorller.
correct_sentence: The clothes in Mr. Cool's Clothes Store are very cheap. All kinds of sweaters are 30 yuan each. Shorts are 20 yuan each.
error: is very cheep , The kind of clothes is 30 dorllers. short is 20 dorller
correction: are very cheap. All kinds of sweaters are 30 yuan each. Shorts are 20 yuan each
error_type: Subject-Verb Agreement Error
error_severity: 5
error_description: ① Subject-Verb Agreement Error: As seen in the original sentence, the subject 〈The clothes〉 is plural, so the verb should not be 〈is〉; it should be changed to 『are』 to maintain subject-verb agreement; ② Spelling Error: The English word "cheap" means "inexpensive"; there is a spelling error here, so 〈cheep〉 needs to be changed to 『cheap』; ③ Space Error: According to English writing conventions, there should be no space between the final word and the end punctuation; therefore, 〈cheep ,〉 should be changed to 『cheap.』; ④ Punctuation Error: From the original sentence, the comma 〈,〉 connects two complete main clauses, so a comma alone cannot connect them; it needs to be changed to 『cheap.』; ⑤ Determiner Error: According to the prompt, the subject of this sentence is "sweaters in various colors"; the original phrase 〈The kind of clothes〉 is vague and does not express "various kinds," so it needs to be changed to 『All』; ⑥ Noun Number Error: According to English determiner-noun agreement, when "all" modifies the countable noun 〈kind〉, it needs to be pluralized; it should be corrected to 『All kinds』 to specify the object clearly according to the prompt; ⑦ Noun Error: According to the prompt, this should mean "sweaters in various colors"; the original word 〈clothes〉 means "clothing," which does not fit the meaning, so it should be changed to 『sweaters』 to match the prompt; ⑧ Subject-Verb Agreement Error: As seen in the original sentence, the subject 『sweaters』 is plural, so the verb should not be 〈is〉; it should be changed to 『are』 to maintain subject-verb agreement; ⑨ Noun Error: According to the prompt, the price unit here is not "dollars" but the Chinese currency unit "yuan," so 〈dorllers〉 needs to be changed to 『yuan』; ⑩ Adverb Error: According to the prompt, the meaning here is "each sweater costs only 30 yuan"; the original sentence lacks a unit quantifier, so the adverb 『each』 needs to be added after the specific price, changing it to 『All kinds of sweaters are 30 yuan each.』 to clarify the quantity unit and make the meaning clearer; ⑪ Case Error: According to English writing conventions, 〈short〉 is at the beginning of an independent sentence, so its first letter needs to be capitalized; it should be changed to 『Shorts』 to comply with English syntax rules; ⑫ Noun Number Error: To refer to "shorts" sold in the store, the plural form is needed for generalization; therefore, 〈short〉 should be changed to 『Shorts』 to fit the meaning and syntax rules; ⑬ Subject-Verb Agreement Error: As seen in the original sentence, the subject 『Shorts』 is plural, so the verb should not be 〈is〉; it should be changed to 『are』 to maintain subject-verb agreement; ⑭ Noun Error: According to the prompt, the price unit here is not "dollars" but the Chinese currency unit "yuan," so 〈dorllers〉 needs to be changed to 『yuan』; ⑮ Adverb Error: According to the prompt, the meaning here is "each pair of shorts costs only 20 yuan"; the original sentence lacks a unit quantifier, so the adverb 『each』 needs to be added after the specific price, changing it to 『Shorts are 20 yuan each』 to clarify the quantity unit and make the meaning clearer.

error_sentence: T-shirtis 25 dorllers. big bag is 35 dorllers. smallbag is 20 dorslers, and have got many shoes, skirt.
correct_sentence: T-shirts are 25 yuan each. Big bags are 35 yuan each. Small bags are 20 yuan each. And it has many shoes and skirts.
error: shirtis 25 dorllers. big bag is 35 dorllers. smallbag is 20 dorslers, and have got
correction: shirts are 25 yuan each. Big bags are 35 yuan each. Small bags are 20 yuan each. And it has
error_type: Word Redundancy Error
error_severity: 5
error_description: ① Noun Number Error: According to the sentence meaning, it indicates "the price of shirts"; in English, this generally refers to the category rather than a single item, so the plural form "shirts" is needed; 〈T-shirtis〉 should be changed to 『T-shirts』; ② Space Error: According to English writing conventions, a standard single space should be kept between the subject and the verb; therefore, 〈shirtis〉 needs to be changed to 『shirts are』; ③ Subject-Verb Agreement Error: The subject 〈T-shirts〉 is plural, so the verb should be 『are』 instead of 〈is〉 to maintain subject-verb agreement; ④ Noun Error: According to the prompt, the price unit here is not "dollars" but the Chinese currency unit "yuan," so 〈dorllers〉 needs to be changed to 『yuan』; ⑤ Adverb Error: According to the prompt, this refers to "the price of each shirt"; the original sentence lacks a unit quantifier, so the adverb 『each』 needs to be added after the specific price, changing it to 『shirts are 25 yuan each.』 to clarify the quantity unit and make the meaning clearer; ⑥ Case Error: 〈big bags〉 is at the beginning of an independent sentence, so its first letter needs to be capitalized; it should be changed to 『Big bags』 to comply with English syntax rules; ⑦ Noun Number Error: According to the sentence meaning, it indicates "the price of big bags"; in English, this generally refers to the category rather than a single item, so the plural form "bags" is needed; 〈big bag〉 should be changed to 『Big bags』; ⑧ Subject-Verb Agreement Error: The subject 『Big bags』 is plural, so the verb should be 『are』 instead of 〈is〉 to maintain subject-verb agreement; ⑨ Noun Error: According to the prompt, the price unit here is not "dollars" but the Chinese currency unit "yuan," so 〈dorllers〉 needs to be changed to 『yuan』; ⑩ Adverb Error: According to the prompt, this refers to "the price of each big bag"; the original sentence lacks a unit quantifier, so the adverb 『each』 needs to be added after the specific price, changing it to 『Big bags are 35 yuan each.』 to clarify the quantity unit and make the meaning clearer; ⑪ Case Error: According to English writing conventions, 〈smallbag〉 is at the beginning of an independent sentence, so its first letter needs to be capitalized; it should be changed to 『Small bags』 to comply with English syntax rules; ⑫ Space Error: According to English writing conventions, a standard single space should be kept between the adjective and the noun; therefore, 〈smallbag〉 needs to be changed to 『Small bags』 to comply with writing conventions; ⑬ Noun Number Error: According to the sentence meaning, it indicates "the price of small bags"; in English, this generally refers to the category rather than a single item, so the plural form "bags" is needed; 〈smallbag〉 should be changed to 『Small bags』; ⑭ Subject-Verb Agreement Error: The subject 『Small bags』 is plural, so the verb should be 『are』 instead of 〈is〉 to maintain subject-verb agreement; ⑮ Noun Error: According to the prompt, the price unit here is not "dollars" but the Chinese currency unit "yuan," so 〈dorslers〉 needs to be changed to 『yuan』; ⑯ Punctuation Error: According to English syntax rules, two independent main clauses need to be connected by a period, not just a comma; therefore, 〈, and〉 needs to be changed to 『. And』; ⑰ Pronoun Error: From the original text, the subject of this sentence is "Mr. Cool's Clothes Store," but the original sentence has a missing subject causing a run-on sentence; 〈and have got〉 lacks a clear subject, so the pronoun 『it』 needs to be added as the subject to refer to the store; ⑱ Subject-Verb Agreement Error: According to English grammar rules, the added subject pronoun 『it』 is singular, so the verb should not be 〈have〉; it should be changed to 『has』 to maintain subject-verb agreement; ⑲ Word Redundancy Error: According to English grammar conventions, this sentence intends to express "the clothing store has many shoes and skirts"; the verb 〈have〉 itself indicates the state of "possession," so the extra verb 〈got〉 is unnecessary and should be deleted to conform to the grammatical structure.

error_sentence: smallbag is 20 dorslers, and have got many shoes, skirt.
correct_sentence: And it has many shoes and skirts.
error: , skirt
correction: and skirts
error_type: Conjunction Error
error_severity: 4
error_description: ① Punctuation Error: According to English grammar and syntax rules, the last two elements in a parallel structure within the same sentence should be connected by a conjunction without a preceding comma; the comma 〈,〉 needs to be deleted to comply with English grammar and syntax rules; ② Conjunction Error: According to English grammar and syntax rules, the last two elements in a parallel structure within the same sentence should be connected by a conjunction; 〈, 〉 needs to be changed to 『and』 to comply with English grammar and syntax rules; ③ Noun Number Error: According to the prompt, this refers to "many beautiful shoes and skirts"; the plural form of the countable noun is required, so 〈skirt〉 needs to be changed to the plural 『skirts』 to match the prompt.