3. A: Must I go out for a walk now?

　　 B: No, you _____.

　　 A. mustn’t　　　 B. can’t　　　 C. needn’t　　　 D. may not

2. I’m thirsty. I’d like _____ a glass of water.

　　　 A. drink　　　 B. to drink　　　 C. drinking　　　 D. drank

1. It’s your turn to _____ the room, Wang Fang.

　　　 A. clean up　 B. clean to　 C. clean-up　　　 D. clean off

10. He is my best friend. We all t_____ in him.

9. Lucy and Lily are twins, so they are s_____ in many ways.

8. I love dogs because they never c______ and they’re grateful.

7. His grandfather can’t walk and has to sit in a w______.

6. There is a s_____. It says“No Smoking!”.

5. His father is able. He can s_____ this problem by himself.

4. My computer is broken. He is r_____ it for me.