一. 单项填空。

　　( ) 1. _____ I go out to play now, Mum?

　　No, you _____. You must do your homework first.

　　A. May; may B. May; may not C. may; may not

　　( ) 2. Cars, buses, bikes ___stop when the traffic light is red.

　　A. may B. can C. must

　　( )3. You _____ be careful when you cross(横穿) the road.

　　A. may B. can C. must

　　( )4. You _____ turn right now if you want to see the hotel.

　　A. must B. can C. may;

　　( )5. --- Must I take a bus?

　　No. You____ walk there.

　　A. can B. does C. can’t

　　( )6. Can you fly a kite? Yes, I ____

　　A. can B. may C can not

　　( )7. _____ I use(使用) your bike?

　　Sure. Here is the key.

　　A. may B. Must C. May

　　( )8. I _____ get up early.

　　Because my home is far from my school.

　　A. must B. can C .may

　　( )9. ______ I have your camera?

　　Yes, you _____.

　　A. may ..,may B. Can, can’t C. May ,may

　　( )10. If you want to send a letter, you______ put a stamp on it.

　　A. must B. may C. can

　　( )11.May I ___the radio?

　　A. turning on B. turn on C. to turn on