Writing prompt: Welcome Exchange Student

Student essay:
Dear Chris,
I'm L, monitor of Class One, Grade Eleven, in C High Shool. I'm so glad to know that you are going to study in our class during your exchange study in China. Let me first tell you something basic and necessary. Our city, J, is in the north temperate zone. It's always hot and rainy in summer, freezing and snowy in winter. Spring and autumn are gorgeous and comfortable. Generally speaking, the weather here is fine.
Eating exerts an significant role in our daily life, and I beg that you must be curious about the food here in China. Let me introduce it briefly and I'm sure that you will be obsessed with the Tianjin food. Tianjin is famous for its local traditional dessert, such like the fried dough twist and the fried rice cake. People here is not keen on spicy and sour food, so I hope that you could get use to the food here as soon as possible.
Our class is just like a warm family. There are 32 girls and 9 boys in our class and they are all enthusiastic and interesting people. To lay a solid fundation for our friendship, they even prepared a welcome party for you! We all looking foward to making you adapt to your life here in China.
All in all, we hope that you can consider your school life with us here in China as an enjoyment. Just share your joy and sorrow with us. Don't be shy to talk about yourself! In this way, we can get a cleaer perspective of you and your life in your hometown.
I think this term can be a valuable experience for you and for us. We all expect your coming to China!
Your early reply will be appreciated!
Yours, L.

Corrected essay:
Dear Chris,
I'm L, monitor of Class One, Grade Eleven, in C High School. I'm so glad to know that you are going to study in our class during your exchange study in China. Let me first tell you something basic and necessary. Our city, J, is in the north temperate zone. It's always hot and rainy in summer, freezing and snowy in winter. Spring and autumn are gorgeous and comfortable. Generally speaking, the weather here is fine.
Eating plays a significant role in our daily life, and I bet that you must be curious about the food here in China. Let me introduce it briefly and I'm sure that you will be obsessed with the Tianjin food. Tianjin is famous for its local traditional desserts, such as the fried dough twist and the fried rice cake. People here are not keen on spicy and sour food, so I hope that you could get used to the food here as soon as possible.
Our class is just like a warm family. There are 32 girls and 9 boys in our class and they are all enthusiastic and interesting people. To lay a solid foundation for our friendship, they even prepared a welcome party for you! We are all looking forward to making you adapt to your life here in China.
All in all, we hope that you can consider your school life with us here in China as an enjoyment. Just share your joy and sorrow with us. Don't be shy to talk about yourself! In this way, we can get a clearer perspective of you and your life in your hometown.
I think this term can be a valuable experience for you and for us. We all expect your coming to China!
Your early reply will be appreciated!
Yours,
L.

Error analysis:
error_sentence: Dear Chris,
I'm L, monitor of Class One, Grade Eleven, in C High Shool.
correct_sentence: Dear Chris,
I'm L, monitor of Class One, Grade Eleven, in C High School.
error: Shool
correction: School
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 "school", therefore 〈Shool〉 is a misspelling of 『School』, and 〈Shool〉 needs to be changed to 『School』 to make the sentence meaning coherent.

error_sentence: Eating exerts an significant role in our daily life, and I beg that you must be curious about the food here in China.
correct_sentence: Eating plays a significant role in our daily life, and I bet that you must be curious about the food here in China.
error: exerts an
correction: plays a
error_type: Verb Choice Error
error_severity: 4
error_description: ① Verb Choice Error: Combining with the context, it is known that the intended expression here is "play an important role", the phrase "play a role" should be used, the verb 〈exerts〉 does not fit the sentence meaning, therefore change 〈exerts〉 to 『plays』 to correctly express the sentence meaning. ② Determiner Error: 〈significant〉 begins with a consonant sound and needs to be modified by 『a』, therefore change 〈an〉 to 『a』 to conform to grammatical rules.

error_sentence: Eating exerts an significant role in our daily life, and I beg that you must be curious about the food here in China.
correct_sentence: Eating plays a significant role in our daily life, and I bet that you must be curious about the food here in China.
error: beg
correction: bet
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: 〈I beg〉 means "I request", which is inconsistent with the contextual logic; combining with the sentence meaning, it is known that 『I bet』 should be used here to mean "I am sure", reflecting a reasonable speculation about the other party's curiosity, therefore change 〈beg〉 to 『bet』 to correctly express the sentence meaning.

error_sentence: Tianjin is famous for its local traditional dessert, such like the fried dough twist and the fried rice cake.
correct_sentence: Tianjin is famous for its local traditional desserts, such as the fried dough twist and the fried rice cake.
error: dessert
correction: desserts
error_type: Noun Number Error
error_severity: 3
error_description: Noun Number Error: Combining with the context, it is known that this refers to multiple desserts, and the plural form 『desserts』 is needed, therefore change 〈dessert〉 to 『desserts』 to fit the plural context, referring to various types of desserts.

error_sentence: Tianjin is famous for its local traditional dessert, such like the fried dough twist and the fried rice cake.
correct_sentence: Tianjin is famous for its local traditional desserts, such as the fried dough twist and the fried rice cake.
error: like
correction: as
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: The fixed phrase 『such as』 is used for giving examples, therefore change 〈like〉 to 『as』 to conform to grammatical rules.

error_sentence: People here is not keen on spicy and sour food, so I hope that you could get use to the food here as soon as possible.

correct_sentence: People here are not keen on spicy and sour food, so I hope that you could get used to the food here as soon as possible.

error: is
correction: are
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: Subject-Verb Agreement Error: The subject 〈People〉 is plural, so the verb needs to be in the plural form, therefore change 〈is〉 to 『are』 to conform to subject-verb agreement rules.

error_sentence: People here is not keen on spicy and sour food, so I hope that you could get use to the food here as soon as possible.

correct_sentence: People here are not keen on spicy and sour food, so I hope that you could get used to the food here as soon as possible.

error: use
correction: used
error_type: Other Error
error_severity: 2
error_description: Other Error: The fixed phrase 『get used to』 means "to become accustomed to", therefore change 〈use〉 to 『used』 to conform to idiomatic expression.

error_sentence: To lay a solid fundation for our friendship, they even prepared a welcome party for you!
correct_sentence: To lay a solid foundation for our friendship, they even prepared a welcome party for you!
error: fundation
correction: foundation
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 "foundation", therefore 〈fundation〉 is a misspelling of 『foundation』, and 〈fundation〉 needs to be changed to 『foundation』 to make the sentence meaning coherent.

error_sentence: We all looking foward to making you adapt to your life here in China.

correct_sentence: We are all looking forward to making you adapt to your life here in China.

correction: are
error_type: Auxiliary Error
error_severity: 2
error_description: Auxiliary Error: The subject 〈We all〉 is plural, and 〈looking foward to〉 needs the auxiliary verb 『are』 to form the correct present continuous structure 『are looking forward to』, therefore add 『are』 after 〈We〉 to maintain tense and subject-verb agreement.

error_sentence: We all looking foward to making you adapt to your life here in China.

correct_sentence: We are all looking forward to making you adapt to your life here in China.

error: foward
correction: forward
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 "expect" or "look forward to", therefore 〈foward〉 is a misspelling of 『forward』, and 〈foward〉 needs to be changed to 『forward』 to make the sentence meaning coherent.

error_sentence: In this way, we can get a cleaer perspective of you and your life in your hometown.

correct_sentence: In this way, we can get a clearer perspective of you and your life in your hometown.

error: cleaer
correction: clearer
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 "clearer", therefore 〈cleaer〉 is a misspelling of 『clearer』, and 〈cleaer〉 needs to be changed to 『clearer』 to make the sentence meaning coherent.

error_sentence: Yours, L.
correct_sentence: Yours,
L.
correction: 

error_type: Format Error
error_severity: 4
error_description: Format Error: According to letter format, the signature part here needs a new line, therefore a newline character needs to be added after 〈Yours〉 to separate the closing and the signature.