Writing prompt: Should We Keep Animals in Zoos?

Student essay:
Last week, we held a meeting about "Shall we keep animals at zoos ?"It was excited that we used all our abilities to explain our topics.
Forty percents of us think people should raise animals at zoos .Because if we do so ,we can see all kinds of animals without going to some dangerous places . And they will be taken good care of instead of living in the forests on their own to face natural enemies . So , it is better to keep them in the zoos than let them live in the nature .
Sixty percents of us think people should not keep animals in the zoos .Because they are not the real homes of animals .Like human beings ,animals also like free lives. It is not free of animals to live in such a small cages.
In my opinion ,It is cruel for us to feed animals in zoos .First ,animals are our friends ,so they should live in the nature just like we live in the houses . Second ,living in the forest can practice their living skills.The animals in the zoos will die easily when they return in the nature. Last but not least, if there are no more
animals in the wild , the ecological balance will be broken.
Therefore , it is better for animals to live in the wild than live in the zoos .

Corrected essay:
Last week, we held a meeting about "Shall we keep animals at zoos?" It was exciting that we used all our abilities to explain our topics.
Forty percent of us think people should raise animals at zoos because if we do so, we can see all kinds of animals without going to some dangerous places. And they will be taken good care of instead of living in the forests on their own to face natural enemies. So, it is better to keep them in zoos than let them live in nature.
Sixty percent of us think people should not keep animals in zoos because they are not the real homes of animals. Like human beings, animals also like free lives. It is not free for animals to live in such small cages.
In my opinion, it is cruel for us to feed animals in zoos. First, animals are our friends, so they should live in nature just like we live in the houses. Second, living in the forest can help them practice their living skills. The animals in the zoos will die easily when they return to nature. Last but not least, if there are no more animals in the wild, the ecological balance will be broken.
Therefore, it is better for animals to live in the wild than to live in zoos.

Error analysis:
error_sentence: "It was excited that we used all our abilities to explain our topics.

correct_sentence: It was exciting that we used all our abilities to explain our topics.

error: excited
correction: exciting
error_type: PoS Confusion Error
error_severity: 3
error_description: PoS Confusion Error: The adjective 〈excited〉 means feeling excited; here the subject 〈It〉 refers to the thing itself, so 『exciting』 should be used to describe the thing that causes excitement, therefore 〈excited〉 is changed to 『exciting』 to conform to grammatical rules.
error_sentence: Forty percents of us think people should raise animals at zoos .Because
correct_sentence: Forty percent of us think people should raise animals at zoos because if we do so, we can see all kinds of animals without going to some dangerous places.
error: percents
correction: percent
error_type: Noun Number Error
error_severity: 3
error_description: Noun Number Error: After a cardinal number, the singular form 〈percent〉 is usually used, so 〈percents〉 is changed to 『percent』 to conform to grammatical rules.
error_sentence: Forty percents of us think people should raise animals at zoos .Because
correct_sentence: Forty percent of us think people should raise animals at zoos because if we do so, we can see all kinds of animals without going to some dangerous places.
error: .Because
correction: because
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: The adverbial clause of reason introduced by 〈Because〉 cannot be used as an independent sentence and needs to be merged with the main clause, so 〈.Because〉 is changed to 『because』 to maintain semantic coherence.
error_sentence: So , it is better to keep them in the zoos than let them live in the nature .

correct_sentence: So, it is better to keep them in zoos than let them live in nature.

error: the
error_type: Word Redundancy Error
error_severity: 2
error_description: Word Redundancy Error: 〈zoos〉 here refers to zoos in general and does not require a definite article, so 〈the〉 is deleted to conform to common English usage.
error_sentence: So , it is better to keep them in the zoos than let them live in the nature .

correct_sentence: So, it is better to keep them in zoos than let them live in nature.

error: the
error_type: Word Redundancy Error
error_severity: 2
error_description: Word Redundancy Error: When 〈nature〉 is used as an abstract concept, it does not require an article, so 〈the〉 is deleted to conform to grammatical rules.
error_sentence: Sixty percents of us think people should not keep animals in the zoos .Because
correct_sentence: Sixty percent of us think people should not keep animals in zoos because they are not the real homes of animals.
error: percents
correction: percent
error_type: Noun Number Error
error_severity: 3
error_description: Noun Number Error: After a cardinal number, the singular form 〈percent〉 is usually used, so 〈percents〉 is changed to 『percent』 to conform to grammatical rules.
error_sentence: Sixty percents of us think people should not keep animals in the zoos .Because
correct_sentence: Sixty percent of us think people should not keep animals in zoos because they are not the real homes of animals.
error: the zoos .Because
correction: zoos because
error_type: Word Redundancy Error
error_severity: 3
error_description: ① Word Redundancy Error: 〈zoos〉 here refers to zoos in general and does not require a definite article, so 〈the〉 is deleted to conform to common English usage; ② Punctuation Error: The adverbial clause of reason introduced by 〈Because〉 cannot be used as an independent sentence and needs to be merged with the main clause, so 〈.Because〉 is changed to 『because』 to maintain semantic coherence.
error_sentence: they are not the real homes of animals .Like human beings ,animals also like free lives.
correct_sentence: Sixty percent of us think people should not keep animals in zoos because they are not the real homes of animals. Like human beings, animals also like free lives.
error: .Like
correction: . Like
error_type: Space Error
error_severity: 1
error_description: Space Error: A space is required after a period in English before starting a new sentence, so 〈.Like〉 is changed to 『. Like』 to conform to writing conventions.
error_sentence: It is not free of animals to live in such a small cages.

correct_sentence: It is not free for animals to live in such small cages.

error: of
correction: for
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: The sentence pattern "It is + adj. + for sb. to do" is used here, so 〈of〉 is changed to 『for』 to conform to grammatical rules.
error_sentence: It is not free of animals to live in such a small cages.

correct_sentence: It is not free for animals to live in such small cages.

error: a
error_type: Word Redundancy Error
error_severity: 3
error_description: Word Redundancy Error: 〈cages〉 is plural and cannot be modified by an indefinite article, so 〈a〉 is deleted to conform to grammatical rules.
error_sentence: In my opinion ,It is cruel for us to feed animals in zoos .First ,animals are our friends ,so they should live in the nature just like we live in the houses .
correct_sentence: In my opinion, it is cruel for us to feed animals in zoos.
error: It
correction: it
error_type: Case Error
error_severity: 1
error_description: Case Error: 〈It〉 is not a proper noun, nor is it at the beginning of a sentence, so its first letter should be lowercase; therefore, 〈It〉 is changed to 『it』.
error_sentence: In my opinion ,It is cruel for us to feed animals in zoos .First ,animals are our friends ,so they should live in the nature just like we live in the houses .
correct_sentence: In my opinion, it is cruel for us to feed animals in zoos. First, animals are our friends, so they should live in nature just like we live in the houses.
error: .First
correction: . First
error_type: Space Error
error_severity: 1
error_description: Space Error: A space is required after a period in English before starting a new sentence, so 〈.First〉 is changed to 『. First』 to conform to writing conventions.
error_sentence: In my opinion ,It is cruel for us to feed animals in zoos .First ,animals are our friends ,so they should live in the nature just like we live in the houses .
correct_sentence: First, animals are our friends, so they should live in nature just like we live in the houses.
error: the
error_type: Word Redundancy Error
error_severity: 2
error_description: Word Redundancy Error: When 〈nature〉 is used as an abstract concept, it does not require an article, so 〈the〉 is deleted to conform to grammatical rules.
error_sentence: Second ,living in the forest can practice their living skills.
correct_sentence: Second, living in the forest can help them practice their living skills.
correction: help them
error_type: Sentence Structure Error
error_severity: 3
error_description: Sentence Structure Error: The original sentence is logically confused and semantically unclear; considering the context, it is understood that the intended meaning is "living in the forest can help them practice their survival skills," so 『help them』 is added after 〈can〉 to make the meaning coherent and conform to grammatical rules.
error_sentence: The animals in the zoos will die easily when they return in the nature.
correct_sentence: The animals in the zoos will die easily when they return to nature.
error: in the
correction: to
error_type: Word Redundancy Error
error_severity: 3
error_description: ① Preposition Error: The verb 〈return〉 requires 『to』 when followed by a destination, so 〈in〉 is replaced with 『to』 to conform to grammatical rules; ② Word Redundancy Error: When 〈nature〉 is used as an abstract concept, it does not require an article, so 〈the〉 is deleted to conform to grammatical rules.
error_sentence: Last but not least, if there are no more
animals in the wild , the ecological balance will be broken.

correct_sentence: Last but not least, if there are no more animals in the wild, the ecological balance will be broken.

error: 

error_sentence: Therefore , it is better for animals to live in the wild than live in the zoos .
correct_sentence: Therefore, it is better for animals to live in the wild than to live in zoos.
correction: to
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: In a comparative structure with 〈than〉, the verb forms before and after it should be consistent; since 〈to live〉 is used before, 『to』 is added after 〈than〉 to conform to grammatical rules.
error_sentence: Therefore , it is better for animals to live in the wild than live in the zoos .
correct_sentence: Therefore, it is better for animals to live in the wild than to live in zoos.
error: the
error_type: Word Redundancy Error
error_severity: 2
error_description: Word Redundancy Error: 〈zoos〉 here refers to zoos in general and does not require a definite article, so 〈the〉 is deleted to conform to common English usage.