Writing prompt: The Trip of the Great Wall

Student essay:
As you know,I was invited to go to China as the messager between Canada and China during the Spring Festival.I lived in my Chinese friend's home and play together.
During these days I studied with my friends that come from China and talked with them and we also did lots of sports.It was happy for me to visit the snece of Beijing and watch Peking Opera.By the way , Chinese food were delicious!I can not forget them , espiecially jiaozi is my favourite food.My friends told me lots of history of the China.
I spend a few wonderful days.I like this life very much

Corrected essay:
As you know, I was invited to go to China as the messenger between Canada and China during the Spring Festival. I lived in my Chinese friend's home and played together.
During these days I studied with my friends who came from China and talked with them and we also did lots of sports. It was happy for me to visit the scenes of Beijing and watch Peking Opera. By the way, Chinese food was delicious! I can not forget them, especially jiaozi, which is my favourite food. My friends told me lots of history of China.
I spent a few wonderful days. I liked this life very much.

Error analysis:
error_sentence: As you know,I was invited to go to China as the messager between Canada and China during the Spring Festival.
correct_sentence: As you know, I was invited to go to China as the messenger between Canada and China during the Spring Festival.
error: messager
correction: messenger
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to the sentence meaning, it is known that the intended expression here is “messenger”, therefore 〈messager〉 is a misspelling of 『messenger』, and it needs to be changed to 『messenger』 to make the sentence coherent.
error_sentence: I lived in my Chinese friend's home and play together.

correct_sentence: I lived in my Chinese friend's home and played together.

error: play
correction: played
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: 〈lived〉 uses the past tense, so 〈play〉 here should also use the past tense to maintain tense consistency, therefore change 〈play〉 to 『played』 to comply with grammatical rules.
error_sentence: During these days I studied with my friends that come from China and talked with them and we also did lots of sports.
correct_sentence: During these days I studied with my friends who came from China and talked with them and we also did lots of sports.
error: that come
correction: who came
error_type: Relative Word Error
error_severity: 4
error_description: ① Relative Word Error: To refer to 〈friends〉, the relative pronoun 『who』 should be used, therefore change 〈that〉 to 『who』 to comply with grammatical rules; ② Verb Tense Error: The action in the clause is consistent with the time of the main clause 〈studied〉, so the past tense is needed here, therefore change 〈come〉 to 『came』 to comply with grammatical rules.
error_sentence: It was happy for me to visit the snece of Beijing and watch Peking Opera.
correct_sentence: It was happy for me to visit the scenes of Beijing and watch Peking Opera.
error: snece
correction: scenes
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to the sentence meaning, it is known that the intended expression here is “scenes”, therefore 〈snece〉 is a misspelling of 『scenes』, and it needs to be changed to 『scenes』 to make the sentence coherent.
error_sentence: By the way , Chinese food were delicious!I can not forget them , espiecially jiaozi is my favourite food.
correct_sentence: By the way, Chinese food was delicious! I can not forget them, especially jiaozi, which is my favourite food.
error: were delicious!I
correction: was delicious! I
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: ① Subject-Verb Agreement Error: The subject 〈Chinese food〉 is an uncountable noun and requires a singular verb, therefore change 〈were〉 to 『was』 to comply with subject-verb agreement rules; ② Space Error: A space needs to be added between the exclamation mark and the next word here, therefore change 〈!I〉 to 『! I』 to comply with writing conventions.
error_sentence: By the way , Chinese food were delicious!I can not forget them , espiecially jiaozi is my favourite food.
correct_sentence: I can not forget them, especially jiaozi, which is my favourite food.
error: espiecially jiaozi
correction: especially jiaozi, which
error_type: Spelling Error
error_severity: 3
error_description: ① Spelling Error: According to the sentence meaning, it is known that the intended expression here is “especially”, therefore 〈espiecially〉 is a misspelling of 『especially』, and it needs to be changed to 『especially』 to make the sentence coherent; ② Other Error: 〈jiaozi is my favourite food〉 is an independent sentence; if it immediately follows the preceding sentence, the relative pronoun 『which』 should be used to introduce a relative clause for further explanation, therefore change 〈jiaozi〉 to 『jiaozi, which』 to comply with grammatical rules.
error_sentence: My friends told me lots of history of the China.

correct_sentence: My friends told me lots of history of China.

error: the
error_type: Word Redundancy Error
error_severity: 2
error_description: Word Redundancy Error: The country name 〈China〉 as a proper noun does not require an article before it, therefore delete 〈the〉 to comply with grammatical rules.
error_sentence: I spend a few wonderful days.
correct_sentence: I spent a few wonderful days.
error: spend
correction: spent
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: The article narrates past events, so the verb needs to be in the past tense, therefore change 〈spend〉 to 『spent』 to conform to the contextual tense.
error_sentence: I like this life very much
correct_sentence: I liked this life very much.
error: like
correction: liked
error_type: Verb Tense Error
error_severity: 3
error_description: Verb Tense Error: The article narrates past events, so the verb needs to be in the past tense, therefore change 〈like〉 to 『liked』 to conform to the contextual tense.
error_sentence: I like this life very much
correct_sentence: I liked this life very much.
correction: .
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: 『I liked this life very much』 is a declarative sentence and is complete, therefore add 『.』 after 〈much〉 to comply with punctuation norms.