Writing prompt: Students Should or Should Not Have Mobile Phones to School

Student essay:
Students should or should not have phones to school become a very big problem for teachers and parents. But different people have different idea.
Some students think bringing phones to school is good. They think phones will help them more. For example, they can use phones to study such as looking up the word, listening to the tape, looking for information or seeing the video. Besides, we can also use it to call somebody.
But every coin has two sides. Phones have advantages and disadvantages. Some people think it is bad for students to bring phones to school. Because they think phones will influence students'grades. And phones will let students indulge in playing.
In my opinion, every person's introductions are good. But mobile phone is a good thing but depends on how you use. On the one hand, phones can help us to study. On the other hand, phones will also influence our studying. So, I think we should bring phones to school but we can not use phones to play.

Corrected essay:
Whether students should bring phones to school has become a very big problem for teachers and parents. But different people have different ideas.
Some students think bringing phones to school is good. They think phones will help them more. For example, they can use phones to study such as looking up words, listening to tapes, looking for information or watching videos. Besides, they can also use them to call somebody.
But every coin has two sides. Phones have advantages and disadvantages. Some people think it is bad for students to bring phones to school because they think phones will influence students' grades. And phones will let students indulge in playing.
In my opinion, every person's suggestions are good. A mobile phone is a good thing but it depends on how you use it. On the one hand, phones can help us to study. On the other hand, phones will also influence our studying. So, I think we should bring phones to school but we can not use phones to play.

Error analysis:
error_sentence: Students should or should not have phones to school become a very big problem for teachers and parents.
correct_sentence: Whether students should bring phones to school has become a very big problem for teachers and parents.
error: Students should or should not have
correction: Whether students should bring
error_type: Sentence Structure Error
error_severity: 3
error_description: Sentence Structure Error: The original sentence is logically chaotic and semantically unclear; considering the context, it aims to express 'whether students should bring mobile phones to school', thus 〈Students should or should not have〉 is changed to 『Whether students should bring』 to make the meaning coherent and conform to grammatical rules.

error_sentence: Students should or should not have phones to school become a very big problem for teachers and parents.
correct_sentence: Whether students should bring phones to school has become a very big problem for teachers and parents.
correction: has
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: Subject-Verb Agreement Error: The subject 『Whether students should bring phones to school』 is a singular concept, so the verb should be 『has』 to maintain consistency; therefore, 『has』 is added before 〈become〉 to comply with grammatical rules.

error_sentence: But different people have different idea.

correct_sentence: But different people have different ideas.

error: idea
correction: ideas
error_type: Noun Number Error
error_severity: 3
error_description: Noun Number Error: 〈different people〉 corresponds to a plural concept, so 〈idea〉 is changed to 『ideas』 to fit the meaning of expressing multiple viewpoints in the context.

error_sentence: For example, they can use phones to study such as looking up the word, listening to the tape, looking for information or seeing the video.
correct_sentence: For example, they can use phones to study such as looking up words, listening to tapes, looking for information or watching videos.
error: the word
correction: words
error_type: Noun Number Error
error_severity: 3
error_description: Noun Number Error: The plural form should be used when giving examples here; 〈the word〉 refers to a specific word, which does not fit the context. 『words』 should be used to indicate a general reference, so 〈the word〉 is changed to 『words』 to match the need for querying multiple words in the context.

error_sentence: For example, they can use phones to study such as looking up the word, listening to the tape, looking for information or seeing the video.
correct_sentence: For example, they can use phones to study such as looking up words, listening to tapes, looking for information or watching videos.
error: the tape
correction: tapes
error_type: Noun Number Error
error_severity: 3
error_description: Noun Number Error: The plural form should be used when giving examples here; 〈the tape〉 refers to a specific tape, which does not fit the context. 『tapes』 should be used to indicate a general reference, so 〈the tape〉 is changed to 『tapes』 to match the concept of multiple listening materials.

error_sentence: For example, they can use phones to study such as looking up the word, listening to the tape, looking for information or seeing the video.
correct_sentence: For example, they can use phones to study such as looking up words, listening to tapes, looking for information or watching videos.
error: seeing the video
correction: watching videos
error_type: Verb Choice Error
error_severity: 4
error_description: ① Verb Choice Error: 〈seeing〉 emphasizes unintentional sight, while 『watching』 stresses purposeful viewing of videos, the latter being more suitable for a learning scenario, so 〈seeing〉 is changed to 『watching』 to meet semantic requirements; ② Noun Number Error: The plural form 『videos』 should be used here to match the concept of multiple video resources, so 〈the video〉 is changed to 『videos』 to meet semantic requirements.

error_sentence: Besides, we can also use it to call somebody.

correct_sentence: Besides, they can also use them to call somebody.

error: we
correction: they
error_type: Pronoun Error
error_severity: 3
error_description: Pronoun Error: The pronoun 〈we〉 is inconsistent with the subject 〈students〉 in the context, so 〈we〉 is changed to 『they』 to avoid person confusion.

error_sentence: Besides, we can also use it to call somebody.

correct_sentence: Besides, they can also use them to call somebody.

error: it
correction: them
error_type: Pronoun Error
error_severity: 3
error_description: Pronoun Error: This refers to the plural noun 〈phones〉, requiring a plural pronoun, so 〈it〉 is changed to 『them』 to maintain consistency between the pronoun and the object it modifies.

error_sentence: Some people think it is bad for students to bring phones to school. Because they think phones will influence students'grades.
correct_sentence: Some people think it is bad for students to bring phones to school because they think phones will influence students' grades.
error: . Because
correction: because
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: A sentence starting with 〈Because〉 cannot stand alone and needs to be merged with the preceding sentence, so 〈. Because〉 is changed to 『because』 to maintain sentence coherence.

error_sentence: Because they think phones will influence students'grades.
correct_sentence: Some people think it is bad for students to bring phones to school because they think phones will influence students' grades.
error: students'grades
correction: students' grades
error_type: Space Error
error_severity: 1
error_description: Space Error: A space needs to be added between the possessive noun 〈students'〉 and the following noun 〈grades〉, so 〈students'grades〉 is changed to 『students' grades』 to conform to writing conventions.

error_sentence: In my opinion, every person's introductions are good.
correct_sentence: In my opinion, every person's suggestions are good.
error: introductions
correction: suggestions
error_type: Noun Error
error_severity: 3
error_description: Noun Error: 〈introductions〉 means 'introductions', which does not fit the contextual meaning; 『suggestions』, expressing 'suggestions', should be used here, so 〈introductions〉 is changed to 『suggestions』 to meet semantic needs.

error_sentence: But mobile phone is a good thing but depends on how you use.
correct_sentence: A mobile phone is a good thing but it depends on how you use it.
error: But
correction: A
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: The countable noun 〈mobile phone〉, when first mentioned, needs to be modified by the indefinite article 『A』, so 〈But〉 is changed to 『A』 to restructure the sentence and conform to semantic logic.

error_sentence: But mobile phone is a good thing but depends on how you use.
correct_sentence: A mobile phone is a good thing but it depends on how you use it.
correction: it
error_type: Pronoun Error
error_severity: 3
error_description: Pronoun Error: The verb 〈depends〉 lacks a subject; 『it』 should be used here to refer to the preceding 〈mobile phone〉, so 『it』 is added after 〈but〉 to complete the sentence structure.

error_sentence: But mobile phone is a good thing but depends on how you use.
correct_sentence: A mobile phone is a good thing but it depends on how you use it.
correction: it
error_type: Pronoun Error
error_severity: 3
error_description: Pronoun Error: The verb 〈use〉 lacks an object; 『it』 should be used here to refer to the preceding 〈mobile phone〉, so 『it』 is added after 〈use〉 to make the meaning complete.