2.　 –Listen! Helen is singing in the next room.

　　 - It _____ be Helen. She has gone to Guangzhou.

　 　A. would　　　 B. can’t　 C. could　　　 D. might

1.　　 Sally _____ go to school by bike, but I’m not sure.

A. may be　　　 B. maybe　 C. might　　　　 D. must

13. I’m very　 a_____ about my son’s health.

12. The young woman was the o___of the cat.

11. It is i____ to play with pets. It can make us happy.

10. To take medicine on time is n______.

9. Many t____ have visited the Great Wall.

8. They s____ a day visiting their relations and friends.

7. Everyone has ten f______.

6. I get on well with my n_____ .they all like me very much.