Writing prompt: Using the given vocabulary and sentence patterns, and referring to the picture, write a short essay. It is 3 PM. Based on the information provided below about Linda, use the present continuous tense to describe what Linda sees and hears at the mall:
Writing hints:
A little girl: buy some food
A young lady: look at a dress
Linda's mother: try on the shoes
Linda's father: stay on the sofa; wait for

Student essay:
A litle girl buy some food. A young lady look at a dress. Linda's mother try the shoes Linda's father stay on the sofa and wait for someone

Corrected essay:
A little girl is buying some food. A young lady is looking at a dress. Linda's mother is trying on the shoes. Linda's father is staying on the sofa and waiting for someone.

Error analysis:
error_sentence: A litle girl buy some food.
correct_sentence: A little girl is buying some food.
error: litle girl buy
correction: little girl is buying
error_type: Verb Tense Error
error_severity: 3
error_description: ① Spelling Error: According to English writing conventions, the word 〈litle〉 is spelled incorrectly and should be changed to 『little』 to conform to English writing standards; ② Verb Tense Error: According to the prompt's requirement to use the present continuous tense to describe ongoing actions, the verb 〈buy〉 is modified to 『is buying』 to comply with grammatical rules.

error_sentence: A young lady look at a dress.
correct_sentence: A young lady is looking at a dress.
error: look
correction: is looking
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: According to English grammar rules, the present continuous tense requires the structure 'be verb + present participle'. The original sentence lacks the 〈be verb〉 and the verb 〈look〉 is not in the present participle form; therefore, it is corrected to 『is looking』.

error_sentence: Linda's mother try the shoes Linda's father stay on the sofa and wait for someone
correct_sentence: Linda's mother is trying on the shoes.
error: try
correction: is trying on
error_type: Verb Tense Error
error_severity: 4
error_description: ① Verb Tense Error: According to English grammar rules, the present continuous tense requires the structure 'be verb + present participle'. The original sentence lacks the 〈be verb〉 and the verb 〈try〉 is not in the present participle form; therefore, it is corrected to 『is trying』; ② Preposition Error: The verb 〈try〉 pairs with the preposition 『on』 to mean 'try on (shoes)'; therefore, the preposition 『on』 is added to comply with grammatical rules.

error_sentence: Linda's mother try the shoes Linda's father stay on the sofa and wait for someone
correct_sentence: Linda's mother is trying on the shoes.
correction: .
error_type: Punctuation Error
error_severity: 1
error_description: Punctuation Error: The phrases “Linda's mother try the shoes ” and “Linda's father stay on the sofa and wait for someone” each contain independent predicate structures and are two separate sentences. A period was not used after 〈shoes〉 to separate the two independent clauses, causing sentence structure confusion; therefore, a period 『.』 is added after 〈shoes〉 to clearly define the clause boundary.

error_sentence: Linda's mother try the shoes Linda's father stay on the sofa and wait for someone
correct_sentence: Linda's father is staying on the sofa and waiting for someone.
error: stay
correction: is staying
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: According to English grammar rules, the present continuous tense requires the structure 'be verb + present participle'. The original sentence lacks the 〈be verb〉 and the verb 〈stay〉 is not in the present participle form; therefore, it is corrected to 『is staying』.

error_sentence: Linda's mother try the shoes Linda's father stay on the sofa and wait for someone
correct_sentence: Linda's father is staying on the sofa and waiting for someone.
error: wait
correction: waiting
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to English grammar rules, in a parallel structure, the second verb 〈wait〉 needs to be consistent in form with the present continuous tense of the first part ('is staying'); therefore, it is changed to the present participle 『waiting』 to match the tense of 'is staying'.

error_sentence: Linda's mother try the shoes Linda's father stay on the sofa and wait for someone
correct_sentence: Linda's father is staying on the sofa and waiting for someone.
correction: .
error_type: Punctuation Error
error_severity: 1
error_description: Punctuation Error: According to English grammar rules, the necessary period 『.』 is missing at the end of the sentence; it needs to be added to complete the sentence punctuation.