用所给词的适当形式填空。

1.  Be quiet.  My father______ (sleep) in the room.

2.  Are you ______ (go) ______ (hike) this Sunday?

3.  We decided _______(go) for a field trip with some friends of ours.

4.   _______ (swim) is the best sport'in summer.

5. Let me help you _______ (find) them.  .

6. _______ (take) a walk after supper is good.

7.  It _______ (take ) me such a long time to get there yesterday.

8.  Han Mei enjoys _______ (sing) in English.

9.  I think he _______ (be) better tomorrow.