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.

1. Everyone has his own a_________, so don't look down upon anyone. 　
2. This is my a_________ for you. I hope you can take it. 　　
3. Please pay a_________ to your behaviors. 　　
4. If the weather is fine, we will a_________ in Beijing on time. 　　
5. Mary is a new mother. She just had a b_________. 　　
6. Andy can't b_________ hard work any longer. He decided to give up. 　　
7. Sunny is a b_________ girl. All her classmates like her. 　　
8. He doesn't have any change, so he gives me a 100-dollar b_________. 　　
9. If you want to get on the plane, you must have a b________ pass.