ПОМОГИТЕ!!!!
Nick is strong. He ______ lift this box.

A. must B. can C. could D. have to

2. In many countries all children ______ attend elementary school.

A. must B. could C. have to D. can

3. I didn't come to the party yesterday because I ______ study.

A. could B. must C. have to D. had to

4. Dogs ______ bark.

A. must B. could C. can D. have to

5. ______ I speak to Jimmy?

A. Must B. Can C. Could D. Have to

6. People ______ eat in order to live.

A. could B. must C. can D. have to

7. In order to be a good shop-assistant, you ______ be rude to customers.

A. can't B. don't have to C. couldn't D. mustn't

8. She isn't very clever. She ______ answer your question.

A. can B. mustn't C. can't D. has to

9. If he wants to become a good specialist, he ______ study well.

A. must B. has to C. could D. can

10. Annie is busy. ______ I take message?

A. Have to B. Can C. Must D. Could