Writing prompt: An Unforgettable Thing during Winter Holiday

Student essay:
This winter holiday, I took part in the social studying in my class. We gave out leaflets in the street.
It was very cold, but the sun was still shining brightly. We stood in the street near the school, waiting for our first "customer". The leaflets we gave out were about convenient parking.
"Attach this leaflet to your car. Then if your car is on others' way, they can use these numbers on it to call you." This explanation may be very simple, however, when you told over fifty people about that, the situation became quite different.
The passers-by were not the same at all. Some of them gave us chance to show them our leaflets. But some were a little bit cold. But never mind, we just searched for another "customer".
After nearly two hours hard work, we gave out all the leaflets. Tired but happy, we finished this unforgettable experience.

Corrected essay:
This winter holiday, I took part in the social study in my class. We gave out leaflets in the street.
It was very cold, but the sun was still shining brightly. We stood in the street near the school, waiting for our first "customer." The leaflets we gave out were about convenient parking.
"Attach this leaflet to your car. Then if your car is in others' way, they can use these numbers on it to call you." This explanation may be very simple. However, when you told over fifty people about that, the situation became quite different.
The passers-by were not the same at all. Some of them gave us a chance to show them our leaflets, but some were a little bit cold. But never mind, we just searched for another "customer."
After nearly two hours of hard work, we gave out all the leaflets. Tired but happy, we finished this unforgettable experience.

Error analysis:
error_sentence: This winter holiday, I took part in the social studying in my class.
correct_sentence: This winter holiday, I took part in the social study in my class.
error: studying
correction: study
error_type: PoS Confusion Error
error_severity: 4
error_description: PoS Confusion Error: According to the context, the meaning here is “social practice”. In the original sentence, 〈studying〉 is a verb form, while a noun form is needed here to represent the specific activity. Therefore, 〈studying〉 needs to be changed to 『study』 to fit the context.

error_sentence: We stood in the street near the school, waiting for our first "customer".
correct_sentence: We stood in the street near the school, waiting for our first "customer."
error: ".
correction: ."
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English writing conventions, when a direct quotation ends, the period should be placed inside the quotation marks. Therefore, 〈customer".〉 needs to be changed to 『customer."』 to conform to English punctuation standards.

error_sentence: Then if your car is on others' way, they can use these numbers on it to call you."
correct_sentence: Then if your car is in others' way, they can use these numbers on it to call you."
error: on
correction: in
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: According to English expression habits, the meaning here is “obstructing others”. 『in others' way』 is a fixed phrase. Therefore, 〈on others' way〉 needs to be changed to 『in others' way』 to conform to expression habits.

error_sentence: This explanation may be very simple, however, when you told over fifty people about that, the situation became quite different.

correct_sentence: This explanation may be very simple. However, when you told over fifty people about that, the situation became quite different.

error: , however
correction: . However
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English expression habits, when 〈however〉 is used as an adverb to connect two independent clauses, it should be separated by a semicolon or a period. Therefore, 〈simple, however,〉 needs to be changed to 『simple. However,』 to conform to writing conventions and expression habits.

error_sentence: Some of them gave us chance to show them our leaflets.
correct_sentence: Some of them gave us a chance to show them our leaflets, but some were a little bit cold.
correction: a
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: According to English expression habits, the indefinite article 『a』 is needed before the singular countable noun 〈chance〉 when it is used in a general sense to indicate singularity. Therefore, 〈gave us chance〉 is changed to 『gave us a chance』 to conform to expression habits.

error_sentence: Some of them gave us chance to show them our leaflets. But some were a little bit cold.
correct_sentence: Some of them gave us a chance to show them our leaflets, but some were a little bit cold.
error: . But
correction: , but
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English grammar rules, if coordinate clauses are connected by the conjunction 〈But〉, a comma, not a period, should be used to separate them. In the original sentence, 〈Some of them...〉 and 〈But some were...〉 are coordinate clauses. Therefore, 〈. But〉 is changed to 『, but』 to conform to grammar.

error_sentence: But never mind, we just searched for another "customer".

correct_sentence: But never mind, we just searched for another "customer. "
After nearly two hours of hard work, we gave out all the leaflets.
error: ".
correction: ."
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English writing conventions, when a direct quotation ends, the period should be placed inside the quotation marks. Therefore, 〈customer".〉 needs to be changed to 『customer."』 to conform to English punctuation standards.

error_sentence: After nearly two hours hard work, we gave out all the leaflets.
correct_sentence: "
After nearly two hours of hard work, we gave out all the leaflets.
correction: of
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: According to English expression habits, the preposition 『of』 connects time and content, with the structure “time period + of + activity”. The original sentence lacks a preposition. Therefore, 〈two hours hard work〉 needs to be changed to 『two hours of hard work』 to conform to expression habits.