1．The old man 　　　our guide.

　　　　 A．acted　　　　　 B．undertook as　　　　 C．undertook to be　　　 D．worked

10. This subject was hotly d_____________..

9. His d___________ of visiting Beijing has come true.

8. G___________ is the force which attracts objects towards the center of the earth.

7. He is lucky to escape being p____________.

6. These two signatures are very s_____________; can you tell them apart?

5. Don’t be too _____________(好打听得) about things you are not supposed to know.

4. He was ____________ (残疾)in the war.

3. She usually _____________ (征求)advice from her father when young.

2. I __________ (浏览) the newspaper while I was waiting for the train.