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:
Now is 3 o'clock in the afternoon, Linda's family with Linda go to a shopping mall. Look! A little girl is buying some food. A young lady is looking at a dress. Linda's mother is trying the shoes. Where is Linda's father? Oh! Her father is sitting on the sofa and waiting for Linda's mother with Linda.

Corrected essay:
Now it is 3 o'clock in the afternoon, and Linda's family with Linda are going to a shopping mall. Look! A little girl is buying some food. A young lady is looking at a dress. Linda's mother is trying on the shoes. Where is Linda's father? Oh! Her father is sitting on the sofa and waiting for Linda's mother and Linda.

Error analysis:
error_sentence: Now is 3 o'clock in the afternoon, Linda's family with Linda go to a shopping mall.
correct_sentence: Now it is 3 o'clock in the afternoon, and Linda's family with Linda are going to a shopping mall.
correction: it
error_type: Sentence Structure Error
error_severity: 4
error_description: Sentence Structure Error: According to English syntactic rules, sentences expressing time require the formal subject “it” to form a complete structure. The original sentence lacks a subject, thus there is a sentence structure error. 『it』 needs to be added before 〈is〉 as a formal subject to form the standard sentence pattern “It is...” to comply with English syntactic rules.

error_sentence: Now is 3 o'clock in the afternoon, Linda's family with Linda go to a shopping mall.
correct_sentence: Now it is 3 o'clock in the afternoon, and Linda's family with Linda are going to a shopping mall.
correction: and
error_type: Conjunction Error
error_severity: 3
error_description: Conjunction Error: According to English syntactic rules and the original sentence's meaning, the original sentence 〈Now it is 3 o'clock in the afternoon〉 and “Linda's family...” are two independent clauses with a close sequential relationship in meaning, thus requiring connection by a comma and a conjunction. The coordinating conjunction 『and』 needs to be added before “Linda’s family...” to comply with English syntactic rules and make the meaning closely connected.

error_sentence: Now is 3 o'clock in the afternoon, Linda's family with Linda go to a shopping mall.
correct_sentence: Now it is 3 o'clock in the afternoon, and Linda's family with Linda are going to a shopping mall.
error: go
correction: are going
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: According to the context, the sentence describes an action currently in progress, meaning “are going to the mall”. Therefore, there is a verb tense error here. The predicate verb in the simple present tense 〈go〉 needs to be changed to the present continuous tense 『are going』 to fit the context.

error_sentence: Linda's mother is trying the shoes.
correct_sentence: Linda's mother is trying on the shoes.
correction: on
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: According to English collocations, the phrasal verb “try on something” means “to try on clothes”. Here 〈the shoes〉 is equivalent to “something”, so there is a preposition error. 『on』 needs to be added before 〈the shoes〉 to form the correct phrasal verb 『trying on the shoes』 meaning “to try on shoes” to comply with English collocations and the original sentence's meaning.

error_sentence: Her father is sitting on the sofa and waiting for Linda's mother with Linda.
correct_sentence: Her father is sitting on the sofa and waiting for Linda's mother and Linda.
error: with
correction: and
error_type: Conjunction Error
error_severity: 3
error_description: Conjunction Error: According to the original sentence's meaning, it intends to express “Linda's father is waiting for Linda's mother and Linda”, where “Linda's mother” and “Linda” are parallel objects of the predicate verb “waiting for”. Parallel objects should be connected by a coordinating conjunction, not a preposition. Therefore, there is a conjunction error here. The preposition 〈with〉, indicating accompaniment, needs to be changed to the coordinating conjunction 『and』 to clarify the parallel relationship and comply with the original sentence's meaning.