Phần đầu : https://lazi.vn/edu/question/1235345 
Phần sau : Ảnh
----- Nội dung dịch tự động từ ảnh -----
B. always turn to their own teachers for help
C. ask any good students at the subject in your school
D. go to their teachers or other teachers teaching the same subject
31. The main idea of the first three paragraphs is
A. to get help when you need it
C. to create a homework plan
32. According to the passage, all of the following are correct EXCEPT that
A. it takes a student more than three hours a night if there is much homework
B. to do homework immediately
D. to ask your teachers for more explanation
B. it is good to have the explanation in a different way
C. you only do your homework at home between 1 and 3 hours a night
D. it is very useful to take a minute to ask the teacher during or after class