用所给词的适当形式填空。

1.The ______ (big) country in the world is Russia.

2.I live in a ______ (wood) house over a river.

3.It was my ______ (twelve) birthday yesterday.

4.The girl wants to be a _______ (dance) when she grows up.

5.The people in the UK eat lots of _______ (potato).

6.Does Andy often go to school without _______ (have) breakfast?

7.He only likes white dress. He doesn't like _______ (colour) dress.

8.The scarves are _______ (make) of silk.

9.The old man _______ (begin) to study computer two weeks ago.

10.Look! Mr. Wang _______ (chat) with his friends over there.

11.Take the second _______ (turn) on the right.

12.Could you tell me how ______ (get) to the shopping mall?

13.Where shall we ______ (meet) tomorrow morning?

14.I hope it won't ______ (rain) this Sunday.

15.There is something under the ground in front of the ______ (three) tree on the left.