Writing prompt: My Teacher

Student essay:
Mrs Sun is my English teacher.She is twenty years old.She looks very nice.She quite tall,with big eyes and short hair,and she wears glasses.She always wears dress.She is always friendly to us.Her all students love she very much.She likes singing and dancing.I love she,because she teaches very well and she is very pretty.

Corrected essay:
Mrs. Sun is my English teacher. She is twenty years old. She looks very nice. She is quite tall, with big eyes and short hair, and she wears glasses. She always wears a dress. She is always friendly to us. All her students love her very much. She likes singing and dancing. I love her, because she teaches very well and she is very pretty.

Error analysis:
error_sentence: Mrs Sun is my English teacher.
correct_sentence: Mrs. Sun is my English teacher.
error: Mrs
correction: Mrs.
error_type: Contraction Error
error_severity: 2
error_description: Contraction Error: According to English writing conventions, 〈Mrs〉 as an honorific abbreviation must be followed by a period, therefore 〈Mrs〉 needs to be changed to 『Mrs.』 to conform to writing conventions.

error_sentence: She quite tall,with big eyes and short hair,and she wears glasses.
correct_sentence: She is quite tall, with big eyes and short hair, and she wears glasses.
correction: is
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: According to English grammar rules, the construction of a sentence requires a predicate; the original sentence 〈She quite tall〉 lacks a verb to describe 〈She〉, so 『is』 needs to be added to connect the subject and complement to conform to English grammar rules.

error_sentence: She always wears dress.
correct_sentence: She always wears a dress.
correction: a
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: According to English grammar rules, a singular countable noun must be preceded by an article; the original sentence lacks the necessary determiner 『a』 before 〈dress〉. Therefore, the sentence is modified to 『She always wears a dress』 to conform to English grammar rules.

error_sentence: Her all students love she very much.
correct_sentence: All her students love her very much.
error: Her all
correction: All her
error_type: Word Order Error
error_severity: 4
error_description: Word Order Error: According to English expression conventions, the determiner 〈all〉 should precede the possessive pronoun 〈her〉; therefore, 〈Her all〉 is changed to 『All her』 to conform to English expression conventions.

error_sentence: Her all students love she very much.
correct_sentence: All her students love her very much.
error: she
correction: her
error_type: Pronoun Error
error_severity: 2
error_description: Pronoun Error: According to the sentence meaning and English grammar rules, the objective case is required after the verb 〈love〉; here, to express “her”, the objective form 『her』 should be used, so 〈she〉 needs to be changed to 『her』 to conform to grammar.

error_sentence: I love she,because she teaches very well and she is very pretty.
correct_sentence: I love her, because she teaches very well and she is very pretty.
error: she
correction: her
error_type: Pronoun Error
error_severity: 2
error_description: Pronoun Error: According to the sentence meaning and English grammar rules, the objective case is required after the verb 〈love〉; here, to express “her”, the objective form 『her』 should be used, so 〈she〉 needs to be changed to 『her』 to conform to grammar.