*Cấu trúc câu với động từ khiếm khuyết modal verbs (can, could, should, must, ....) được sử dụng trong bài:

(+) S + modal verbs + V(inf)

(-) S + modal verbs not + V(inf)

(?) Modal verbs (not) + S + V(inf)*

                                                   BÀI LÀM:

1, We must do well at school.

2, I don't have to agree with everything my parents say.

3, I mustn't go home late at night.

4, You should tell the truth to your teacher.

5, Teenagers must prepare for their future.

=>

1. We must do well at school.

-> must V: phải làm gì

2. I don't have to agree with everything my parents say.

-> don't have to V: không phải làm gì

3. I mustn't go home late at night.

-> mustn't V: không được phép làm gì

4. You should tell the truth to your teacher.

-> should V: nên làm gì

5. Teenagers must prepare for their future.

-> must V: phải làm gì