10. –Mum, may I watch TV now?
--Sure, but you ______ help me with my housework first.
A. can B. may C. must D. could
9. These books ______ out of the reading room. You have to read them here.
A. can’t take B. must be taken C. can take D. mustn’t be taken
8. –Who is the man over there? Is it Mr Li?
--No, it ______ be him. Mr Li is much taller.
A. musn’t B. may not C. can’t D. needn’t
7. –Where is Jack, please ? --He _____ be in the reading room.
A. can B. need C. would D. must
6. –May I go out to play basketball, Dad?
--No, you ______. You must finish your homework first.
A. mustn’t B. may not C. couldn’t D. needn’t
5. To make our city more beautiful, rubbish ______ into the river.
A. needn’t be thrown B. mustn’t be thrown
C. can’t throw D. may not throw
4. –May I go to the cinema, Mum? --Certainly. But you ______ be back by 11 o’clock.
A. can B. may C. must D. need
3. –Can you go swimming with us this afternoon?
--Sorry, I can’t. I _____ take care of my little sister at home because my mother is ill.
A. can B. may C. would D. have to
2. –Must I saty at home, Mum? --No, you ______.
A. needn’t B. mustn’t C. don’t D. may not
1. Mr Wang ______ be in Nanjing now, he went to Beijing only this morning.
A. mustn’t B. may not C. can’t D. needn’t