6.By the end of last term, they ____(work) there for ten years.

5.--____ your uncle ____(return) the video tapes to Mr Fox?

　--No. They're still in his bedroom.

4.Bill is strict with himself. He never ____(leave) today's work for tomorrow.

3.--Who ____(knock) at the door?

　--I don't know. Let me go and see.

2.I think he ____(be) back in a week.

1.Mr Brown will go fishing if it ____(not rain) tomorrow.

10.The house was a m_______ after a party.

　B)用所给动词的适当形式填空。

9.We are helping the workers ________ ________(清除)that dirty river

8.It would be a good e_________ for me to study at our school.

7.I can't c_________ on my studies with so much noises.