1. -Mum， may I watch TV now？

-Sure， but you ________ help me with my English.

A. can B. may

C. must D. could

2. -________ I download the article again？

-No，you needn't.

A. Shall B. Will

C. Must D. Can

3. -Can you go skating with us this afternoon？

-Sorry， I can't. I ________ take care of my little sister at home.

A. can B. may

C. would D. have to

4. -Must I hand in my exercise book today？

-No， you ________.

A. can't B. needn't

C. mustn't D. won't

5. -May I have a word with you？

-No， you ________. I'm busy today.

A. needn't B. wouldn't

C. don't have toD. can't

6. -________I have your English name， please？

-Yes， Helen. H-E-L-E-N.

A. Must B. May

C. Will D. Need

7. -Who is the boy over there？Is it John？

-No， it ________ be him. John is much taller.

A. mustn't B. may not

C. can't D. needn't

8. -Can you play Frisbee， Jay？

-Yes， I ________. It's easy.

A. must B. can

C. need D. may

9.-You must come back every month. -Yes， I ________.

A. will B. must

C. should D. can

10. She ________ know the answer， but I'm not sure.

A. maybe B. may be

C. may D. must

11. - Must we clean the room right now？

- No， you. You clean it after lunch.

A. needn't；may B. needn't;must

C. Mustn't；can D. mustn't；may

12. John________ come to see us tonight， but he isn't very sure yet.

A. may B. can

C. has to D. must

13. Children ________ play with fire.

A. mustn't B. can't

C. shouldn't D. needn't

14. -________ I come in， Mr Green？

-Yes,come in， please.

A. Must B. Need

C. Will D. May

15. -Must I finish the work today？

-No， you ________. You ________ finish it tomorrow.

A. mustn't；may B. can't；can

C. needn't；may D. needn't；must