18. ________ the man is very old, 　　　　　　he has never stopped studying.

A. Though, but　　 B. Though, and　 　C. Though, then 　　　　D. Though, \

17. Could you tell me when ____　　 _____?

A. does the train leave　 B. the train leave　 C. the train leaves　 D. leaves the train

16. The Smiths _______ in Beijing since 1995.

A. has lived　　　 B. are living　　 　C. have lived　　　 　D. live

15. __________ you practise, __________ you can do it.

A. The more, the fast　　 　　　　B. The more, the more faster

C. The more, the faster　　　　 D. More, fast

14. Father asked Edison ____　 ___ doing that for.

A. how is he 　　B. what he was　　 C. why was he　　 D. where he is

13. He offered ________ us.

A. helping　　　 B. to help 　　　C. for helping　　　 D. to help with

12. He was amazed _______ the strange colour.

A. at　　　　　　 B. about 　　　　　C. for　　　　 　　D. with

11. Please tell me ________ to do it.

A. what　　 　　　B. how　　　　　 C. if　　　 　　　　D. \

10. Look, there are a lot of students ________ in the sea.

A. surf　　　　 　　B. surfed　　 　　C. are surfing　　　 D. surfing

9. I don’t know if he ________ . If he 　　　　, I will call you.

A. comes, comes　 B. come, come　 C. will come, comes　 D. comes, will come