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:
At 3:00p.m. In a shopping centre . Limda is see somethings . A little girl is buying some food . A young lady is looking at a dress. Linda's mother is trying the shoes. Linda's father is staying on the sofa and waiting for Linda's mother.

Corrected essay:
At 3:00 p.m. In a shopping centre, Linda is seeing something. 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 Linda's mother.

Error analysis:
error_sentence: At 3:00p.m.
correct_sentence: At 3:00 p.m.
error: 3:00p.m.
correction: 3:00 p.m.
error_type: Space Error
error_severity: 1
error_description: Space Error: According to English writing conventions, a space is required between the number and the time abbreviation in time expressions. In the original sentence, there is no space between the number 〈3:00〉 and the abbreviation 〈p.m.〉, which is incorrect. A space should be added between 〈3:00〉 and 〈p.m.〉, changing it to 『3:00 p.m.』 to meet English writing requirements.

error_sentence: In a shopping centre . Limda is see somethings .
correct_sentence: In a shopping centre, Linda is seeing something.
error: . Limda is see somethings
correction: , Linda is seeing something
error_type: Nonfinite Verb Form Error
error_severity: 4
error_description: ① Punctuation Error: According to English grammar rules, the parts 〈In a shopping centre〉 and 〈Limda is see somethings〉 are semantically connected and should not be separated by a period. 〈shopping centre.〉 should be changed to 『shopping centre, 』 to correct the sentence structure and conform to English expression habits; ② Spelling Error: According to correct spelling rules, the name 〈Limda〉 is misspelled. It should be corrected to 『Linda』 to accurately represent the name; ③ Nonfinite Verb Form Error: The phrase 〈is see〉 in the original sentence does not meet the structural requirements of the present continuous tense. According to English grammar, the verb 〈see〉 should be changed to its present participle form 『seeing』, forming 『is seeing』 to express an ongoing action; ④ Noun Number Error: The plural form 〈somethings〉 does not exist in English in this context. Based on the meaning, the uncountable noun 『something』 should be used here to mean 'something', making the sentence grammatically and semantically correct.

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 expression habits, when 'try' means 'to try on clothes', it is an intransitive verb and needs to be paired with the preposition 'on' to form the fixed phrase 'try on'. In the original sentence 〈Linda's mother is trying the shoes.〉, the preposition 『on』 is missing after 〈trying〉, making the meaning incomplete. 『on』 should be added to form 『trying on the shoes』, making the expression standard and accurately conveying the meaning of 'trying on shoes'.