Writing prompt: Using the given vocabulary and sentence patterns, and referring to the picture, write a short essay. It is currently 7 PM. Based on the information provided by Linda below, use the present continuous tense to describe what Linda and her family are doing. Writing hints: Linda: help mother do housework; grandparents: watch TV; brother: play computer games; mother: cook; sister: listen to the radio.

Student essay:
"What time is it? " I sid "It's seven o'clocl in the evening. " mom sid. My mother is cooking dinner in kitchen, I help my mother doing housework. My grandparents watching TV in the living room. My brother is playing computer games. My sister is listening to the radio.

Corrected essay:
"What time is it?" I said. "It's seven o'clock in the evening," Mom said. My mother is cooking dinner in the kitchen, and I am helping my mother do housework. My grandparents are watching TV in the living room. My brother is playing computer games. My sister is listening to the radio.

Error analysis:
error_sentence: I sid "It's seven o'clocl in the evening. "
correct_sentence: I said.
error: sid
correction: said.
error_type: Punctuation Error
error_severity: 2
error_description: ① Spelling Error: According to the sentence meaning, the intention here is to express "say", so 〈sid〉 is a misspelling of 『said』; it needs to be changed to 『said』 to make the sentence coherent; ② Punctuation Error: Based on the preceding text, 〈What time is it?〉 is a complete question, and the question mark is part of the quotation, therefore, a period should be used after 〈I said〉 to indicate the end; a period should be added after 『said』 to make it 『said.』.

error_sentence: I sid "It's seven o'clocl in the evening. "
correct_sentence: "It's seven o'clock in the evening," Mom said.
error: o'clocl
correction: o'clock
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to the sentence meaning, the intention here is to express "o'clock", so 〈o'clocl〉 is a misspelling of 『o'clock』; it needs to be changed to 『o'clock』 to make the sentence coherent.

error_sentence: I sid "It's seven o'clocl in the evening. " mom sid.
correct_sentence: "It's seven o'clock in the evening," Mom said.
error: . " mom sid
correction: ," Mom said
error_type: Punctuation Error
error_severity: 3
error_description: ① Punctuation Error: According to English writing conventions, a comma 『,』 should be used to connect the speaker at the end of a direct quote, not a period; 〈.〉 should be changed to 『,』; ② Space Error: According to English writing conventions, no space is needed between punctuation marks (like periods, question marks, etc.) and quotation marks; 〈. "〉 should be changed to 『,"』 to conform to the convention; ③ Case Error: According to English writing conventions, the first letter of proper nouns needs to be capitalized; in the original sentence, 〈mom〉 is a proper noun meaning "Mom", so 〈mom〉 needs to be changed to 『Mom』 to conform to the convention; ④ Spelling Error: According to the sentence meaning, the intention here is to express "say", so 〈sid〉 is a misspelling of 『said』; it needs to be changed to 『said』 to make the sentence coherent.

error_sentence: My mother is cooking dinner in kitchen, I help my mother doing housework.
correct_sentence: My mother is cooking dinner in the kitchen, and I am helping my mother do housework.
correction: the
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: The preposition 〈in〉 needs to be followed by the definite article 『the』 to specify the particular kitchen 〈kitchen〉; therefore, 『the』 should be added after 〈in〉 to comply with grammatical rules.

error_sentence: My mother is cooking dinner in kitchen, I help my mother doing housework.
correct_sentence: My mother is cooking dinner in the kitchen, and I am helping my mother do housework.
error: I help
correction: and I am helping
error_type: Conjunction Error
error_severity: 4
error_description: ① Conjunction Error: 〈My mother is cooking dinner in kitchen〉 and 〈I help my mother doing housework〉 contain independent subject-verb structures and can stand as separate sentences, so 『and』 needs to be added before 〈I〉; ② Verb Tense Error: According to the context, 〈help〉 should be in the present continuous tense to be consistent with the preceding 〈is cooking dinner〉, therefore, 〈help〉 needs to be changed to 『am helping』 to meet the tense requirement.

error_sentence: My mother is cooking dinner in kitchen, I help my mother doing housework.
correct_sentence: My mother is cooking dinner in the kitchen, and I am helping my mother do housework.
error: doing
correction: do
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to the English fixed phrase "help sb. do sth.", 『do』 is an infinitive structure with 'to' omitted; the base form of the verb should be used here, therefore, 〈doing〉 should be changed to 『do』 to comply with the verb collocation rule.

error_sentence: My grandparents watching TV in the living room.
correct_sentence: My grandparents are watching TV in the living room.
correction: are
error_type: Auxiliary Error
error_severity: 2
error_description: Auxiliary Error: The sentence 〈My grandparents watching TV〉 lacks the auxiliary verb 『are』 needed to form the present continuous tense; therefore, 『are』 needs to be added before 〈watching〉 to form the correct present continuous tense.