12. ---Which is more useful, biology or chemistry?

　 ---I think _____them are useful.

　 A. either of　　 B. none of　　 C. both of　　 D. all of

11. ---Hello, may I speak to Mis Smith?

　 ---I’m sorry she left here ______.

　 A. just now　　 B. now and then　　　 C. right now　　 D. from now on

10. ---Do you know ______going to stay in London?

　 ---No, I don’t. Maybe a few days.

　 A. when he is　　 B. how long he is　　 C. when is he　　 D. how long is he

9. ---That’s ______he told me the other day.

　 ---Thank you for telling me the truth.

　 A. that　　 B. which　　　 C. when　　　 D. what

8. ---You should tell Tom that he ______to work for the 21^st UNIVERSIADE.

　 ---I think so, I will tell him on his birthday.

　 A. chooses　　 B. has chosen　　　 C. chose　　　 D. is chosen

7. ---How much is your house _______?

　 ---It’s 300, 000 yuan.

　 A. cost　　　 B. take　　　 C. pay　　 D. worth

6. ---You watched the fashion show last night, didn’t you?

　 ---Yes, ______I missed the beginning.

　 A. so　　 B. and　　　 C. but　　　 D. then

5. ---Did you see Mr. Smith when you were in France?

　 ---No, when I ______France, he had gone to China.

　 A. had arrived to　　 B. arrived to　　 C. had got to　　 D. got to

4. ---It’s too hot. Would you mind my _____the window?

　 ---_______. Do it as you like, please!

　 A. to open; OK　　　　　　 B. opening; Certainly not

　 C. closing; Of course　　　 　D. open; Good idea

3. ---I think our chemistry teacher is working hard. He teaches us _______.

　 ---Yes, but he hasn’t come today. He doesn’t feel _______.

　 A. good; well　　 B. good; good　　 C. well; good　　 D. well; well