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:
It's 7:00, let's take a look at Linda's family. Linda ia helping her mother do housework, her grandparents is watching TV, her brother is playing computer games, her mother is coooking, and her sister is listen to the radio.

Corrected essay:
It's 7:00. Let's take a look at Linda's family. Linda is helping her mother do housework. Her grandparents are watching TV. Her brother is playing computer games. Her mother is cooking, and her sister is listening to the radio.

Error analysis:
error_sentence: It's 7:00, let's take a look at Linda's family.
correct_sentence: It's 7:00. Let's take a look at Linda's family.
error: , let
correction: . Let
error_type: Punctuation Error
error_severity: 2
error_description: ① Punctuation Error: The two independent clauses 〈It's 7:00〉 and 〈let's take...〉 need to be separated by a period, so the comma is changed to 『.』 to avoid a comma splice error; ② Case Error: According to English writing conventions, the first letter of the word 〈let〉 at the beginning of a sentence should be capitalized, so it should be changed to 『Let』.

error_sentence: Linda ia helping her mother do housework, her grandparents is watching TV, her brother is playing computer games, her mother is coooking, and her sister is listen to the radio.
correct_sentence: Linda is helping her mother do housework.
error: ia
correction: is
error_type: Spelling Error
error_severity: 1
error_description: Spelling Error: According to English writing conventions, the correct spelling of the present continuous auxiliary verb should be 〈is〉, not 〈ia〉, so it is changed to 『is』 to conform to the verb form.

error_sentence: Linda ia helping her mother do housework, her grandparents is watching TV, her brother is playing computer games, her mother is coooking, and her sister is listen to the radio.
correct_sentence: Linda is helping her mother do housework. Her grandparents are watching TV.
error: , her grandparents is
correction: . Her grandparents are
error_type: Subject-Verb Agreement Error
error_severity: 4
error_description: ① Punctuation Error: The sentences 〈Linda ia helping her mother do housework〉 and 〈her grandparents is〉 contain independent predicate structures and can stand alone as sentences, so the 〈,〉 needs to be replaced with a period 『.』; ② Case Error: The sentence 〈her grandparents is...〉 can stand alone, so the first letter of the first word should be capitalized, thus changing 〈her〉 to 『Her』; ③ Subject-Verb Agreement Error: The subject 〈grandparents〉 is plural, so the verb 〈is〉 needs to be changed to the plural form 『are』 to agree with the subject.

error_sentence: Linda ia helping her mother do housework, her grandparents is watching TV, her brother is playing computer games, her mother is coooking, and her sister is listen to the radio.
correct_sentence: Her grandparents are watching TV. Her brother is playing computer games.
error: , her
correction: . Her
error_type: Punctuation Error
error_severity: 2
error_description: ① Punctuation Error: The sentences 〈her grandparents is watching TV〉 and 〈 her brother is playing computer games〉 contain independent predicate structures and can stand alone as sentences, so the 〈,〉 needs to be replaced with a period 『.』; ② Case Error: The sentence 〈her brother is playing computer games〉 can stand alone, so the first letter of the first word should be capitalized, thus changing 〈her〉 to 『Her』.

error_sentence: Linda ia helping her mother do housework, her grandparents is watching TV, her brother is playing computer games, her mother is coooking, and her sister is listen to the radio.
correct_sentence: Her brother is playing computer games. Her mother is cooking, and her sister is listening to the radio.
error: , her
correction: . Her
error_type: Punctuation Error
error_severity: 2
error_description: ① Punctuation Error: The sentences 〈her brother is playing computer games〉 and 〈her mother is cooking 〉 respectively contain independent predicate structures and can stand alone as sentences, so the 〈,〉 needs to be replaced with a period 『.』; ② Case Error: The sentence 〈her mother is cooking 〉 can stand alone, so the first letter of the first word should be capitalized, thus changing 〈her〉 to 『Her』.

error_sentence: Linda ia helping her mother do housework, her grandparents is watching TV, her brother is playing computer games, her mother is coooking, and her sister is listen to the radio.
correct_sentence: Her mother is cooking, and her sister is listening to the radio.
error: coooking
correction: cooking
error_type: Spelling Error
error_severity: 1
error_description: Spelling Error: The correct spelling of the present participle of the verb 〈cook〉 should be 〈cooking〉, not 〈coooking〉, so it is changed to 『cooking』 to conform to English writing conventions.

error_sentence: Linda ia helping her mother do housework, her grandparents is watching TV, her brother is playing computer games, her mother is coooking, and her sister is listen to the radio.
correct_sentence: Her mother is cooking, and her sister is listening to the radio.
error: listen
correction: listening
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: In the sentence 〈her sister is listen〉, 〈is〉 is an auxiliary verb, and the predicate verb is 『is listening』. Together they form the predicate. The verb 〈listen〉 should be in the present participle form, so it should be changed to 『listening』 to conform to English grammar rules.