词形变换。

1. We play a game             (call) trick or treat.

2. —What do you buy the pumpkins for?   — ______ (make) lanterns.

3. I don't know what             (wear) for the dinner party.

4. The library is on the ______ (two) floor.

5. We are ______ (excite) to see you.

6. I clean my room ______ (two) a day.

7. You must brush your ______ (tooth) every day.

8. What about _______ (cut) out eyes and noses.

9. There is lots of _______ (turkey) on the table.

10. Would you please _______ (not knock) on the door?

11. They celebrate the festival by              (give) presents and cards.

12. Let him ______ (clean) the blackboard today.

13. I will go to the park if it_______ (not rain) tomorrow.

14. Thanks a lot for ______ (give) us so many candies.

15. What are they looking forward to _______ (do)?