7．They heard Mary ________(play)the violin in the next room．

6．The air is very clear today，so we ________(see)the whole park from up there．

5．He told me he ________ (visit) our teacher this afternoon．

4．While they ________(watch)TV，we listened to music．

3．Stop ________ (talk)．It’s time for class．

2．Just tell me what you________ (have)for breakfast．

1．If the red tight________ (not come)on，wait for thirty seconds．

10．Even when we are very angry，we should try to keep________(冷静)．

9．All the students like Miss Wang’s beautiful________(声音)．

8．He gave his life to ________ (帮助)the Chinese people．