15．Our teacher told us light　　　　　　　 (be)faster than sound．

14．Listen! There is someone　　　　　　　　　　 (play)the piano in the room．

13．Do you know who he　　　　　　　　　 (talk)with at 9：00 last night?

12．一Why doesn’t Bessie go to the cinema with us?

-Because she　　　　　　　　　　 (see)the film．

11．Jack was too excited　　　　　　　　　　 (fall)asleep．

10．　　　　　　　　　　 are working hard to make the dream become true．

Ⅲ．用动词的适当形式填空。

9．Earth is becoming more and more　　　　　　　　 ．

8．No hurry．There is a little time　　　　　　　　　　 ．

7．Eric did　　　　　　　　　 in the physics exam than Sally．