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 downing. All kind of colour's coat have 30 yuan, shorts have 20 yuan, skirts have 25 yuan. Big bags have 35 yuan, small bags have20 yuan. And have many bueatiful shoes and dresses in it, wellcome in it shopping.

Corrected essay:
Mr. Cool's Clothes Store is having a sale. All kinds of colored sweaters sell for 30 yuan. Shorts sell for 20 yuan, and shirts sell for 25 yuan. Big bags sell for 35 yuan, and small bags sell for 20 yuan. And there are many beautiful shoes and dresses in it. Welcome to shop in it.

Error analysis:
error_sentence: Mr. Cool's Clothes Store is downing.
correct_sentence: Mr. Cool's Clothes Store is having a sale.
error: downing
correction: having a sale
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: According to the context, the original word 〈downing〉 means 'decreasing', while the correct expression for 'having a big sale' is 'have a sale'. Applying the present continuous tense, 〈is downing〉 should be changed to 『is having a sale』 to conform to English usage customs.
error_sentence: All kind of colour's coat have 30 yuan, shorts have 20 yuan, skirts have 25 yuan.
correct_sentence: All kinds of colored sweaters sell for 30 yuan.
error: kind of colour's coat have
correction: kinds of colored sweaters sell for
error_type: Verb Choice Error
error_severity: 5
error_description: ① Noun Number Error: According to English grammar rules, since 〈kind〉 is preceded by 〈all〉, it should be in the plural form 『kinds』 to indicate 'multiple types'; ② Adjective Error: Following English usage, the intended meaning here is 'colorful' or 'of color', but 〈colour's〉 is not standard English; it should be changed to the adjective 『colored』 to meet grammatical requirements; ③ Noun Error: Based on the prompt, the sentence should state 'sweaters sell for 30 yuan', but the original word 〈coat〉 means 'outer jacket'; it should be changed to 『sweaters』 to match the intended meaning; ④ Verb Choice Error: According to the context, the sentence should convey 'sweaters sell for 30 yuan'; the original verb 〈have〉 means 'possess', and should be changed to the phrasal verb 『sell for』 to accurately express the selling price.
error_sentence: All kind of colour's coat have 30 yuan, shorts have 20 yuan, skirts have 25 yuan.
correct_sentence: All kinds of colored sweaters sell for 30 yuan. Shorts sell for 20 yuan, and shirts sell for 25 yuan.
error: , shorts have
correction: . Shorts sell for
error_type: Verb Choice Error
error_severity: 4
error_description: ① Punctuation Error: According to English grammar rules, 〈coat have 30 yuan〉 and 〈shorts have 20 yuan〉 are complete clauses; therefore, the comma 〈,〉 should be changed to a period 『.』 to separate the two independent sentences, corrected to 『. Shorts sell for』; ② Verb Choice Error: According to the context, the sentence should convey 'shorts sell for 20 yuan'; the original verb 〈have〉 means 'possess', and should be changed to the phrasal verb 『sell for』 to accurately express the selling price.
error_sentence: All kind of colour's coat have 30 yuan, shorts have 20 yuan, skirts have 25 yuan.
correct_sentence: Shorts sell for 20 yuan, and shirts sell for 25 yuan.
error: skirts have
correction: and shirts sell for
error_type: Conjunction Error
error_severity: 5
error_description: ① Conjunction Error: According to English grammar rules, since both 〈shorts have〉 and 〈skirts have〉 contain subject-verb structures, they are parallel clauses and require the conjunction 『and』 to connect them, conforming to English usage; ② Noun Error: Based on the prompt, the original word 〈skirts〉 is incorrect as it does not match the intended meaning of 'shirts'; it should be changed to 『shirts』 to fit the context; ③ Verb Choice Error: According to the context, the sentence should convey 'shirts sell for 25 yuan'; the original verb 〈have〉 means 'possess', and should be changed to the phrasal verb 『sell for』 to accurately express the selling price.
error_sentence: Big bags have 35 yuan, small bags have20 yuan.
correct_sentence: Big bags sell for 35 yuan, and small bags sell for 20 yuan.
error: have
correction: sell for
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: According to the prompt, the sentence should convey 'Big bags sell for 35 yuan'; the original verb 〈have〉 means 'possess', which does not fit the prompt's requirement or usage customs; it should be changed to the phrasal verb 『sell for』 to accurately express the selling price.
error_sentence: Big bags have 35 yuan, small bags have20 yuan.
correct_sentence: Big bags sell for 35 yuan, and small bags sell for 20 yuan.
correction: and
error_type: Conjunction Error
error_severity: 3
error_description: Conjunction Error: According to English grammar rules, since 〈Big bags have 35 yuan〉 and 〈small bags have20 yuan〉 are complete clauses, they are parallel clauses and require the conjunction 『and』 to connect them, conforming to English usage.
error_sentence: Big bags have 35 yuan, small bags have20 yuan.
correct_sentence: Big bags sell for 35 yuan, and small bags sell for 20 yuan.
error: have20
correction: sell for 20
error_type: Verb Choice Error
error_severity: 4
error_description: ① Verb Choice Error: According to the prompt, the sentence should convey 'small bags sell for 20 yuan'; the original verb 〈have〉 means 'possess', which does not fit the prompt's requirement or usage customs; it should be changed to the phrasal verb 『sell for』 to accurately express the selling price. ② Space Error: According to English writing conventions, the necessary space is missing between 〈have〉 and 〈20〉 in the original 〈have20〉; after changing the verb phrase to 『sell for』 followed by 〈20〉, it is ultimately corrected to 『sell for 20 yuan』 to ensure proper English writing format.
error_sentence: And have many bueatiful shoes and dresses in it, wellcome in it shopping.
correct_sentence: And there are many beautiful shoes and dresses in it.
error: have many bueatiful
correction: there are many beautiful
error_type: Sentence Structure Error
error_severity: 4
error_description: ① Sentence Structure Error: According to English usage customs, the original verb 〈have〉 lacks a subject, which is an incorrect way to express existence in English; the correct structure requires the 'there be' pattern, so it should be changed to 『there are』 to express that something exists somewhere and comply with English grammar; ② Spelling Error: Based on the sentence's meaning, the intention is to express 'beautiful', thus 〈bueatiful〉 is a misspelling of 『beautiful』; it needs to be corrected to 『beautiful』 for the sentence to make sense.
error_sentence: And have many bueatiful shoes and dresses in it, wellcome in it shopping.
correct_sentence: And there are many beautiful shoes and dresses in it. Welcome to shop in it.
error: , wellcome
correction: . Welcome to shop
error_type: Nonfinite Verb Form Error
error_severity: 5
error_description: ① Punctuation Error: According to English usage customs, the original phrase 〈wellcome in it shopping〉 functions as a complete sentence and needs to be separated from the preceding sentence with a period 『.』; therefore, 〈in it,〉 should be changed to 『in it.』 to comply with English punctuation rules; ② Spelling Error: Based on the sentence's meaning, the intention is to express 'welcome', thus 〈wellcome〉 is a misspelling of 『Welcome』; it needs to be corrected to 『Welcome』 for the sentence to make sense. ③ Nonfinite Verb Form Error: From the original text, the intended meaning is 'Welcome to shop here'; in the original phrase 〈wellcome in it shopping〉, the nonfinite verb 〈shopping〉 should be changed to the infinitive 『to shop』 and placed after 『Welcome』, ultimately forming the correct expression 『Welcome to shop in it.』.
error_sentence: And have many bueatiful shoes and dresses in it, wellcome in it shopping.
correct_sentence: Welcome to shop in it.
error: shopping
error_type: Word Redundancy Error
error_severity: 4
error_description: Word Redundancy Error: According to the context, 〈shopping〉 in the original sentence is a redundant element and semantically repeats 『Welcome to shop』; deleting it does not affect the sentence's completeness or meaning but makes it more concise and fluent; therefore, 〈shopping〉 is removed to conform to English usage customs.