2. B　 whether…or无论…还是

1. C　 that在引导主语从句、同位语从句、表语从句时不省略，引导宾语从句时可省略。

15. He often thinks of _____ he can do more for the four modernizations.

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

　 答案与解析：

14. Are you sure _____？

　　 A. whether she is honest　

　　 B. that she is honesty

　　 C. she is honest　 　 　

　　 D. is she honest

13. _____ do you think will teach us maths next term？

　　 A. Whom　　 B. Who　　 C. What　　 D. That

12. I have no idea _____.

　　 A. what does the word “infinity” mean

　　 B. what the word “infinity” means

　　 C. what the meaning of the word “infinity”

　　 D. what the word “infinity” mean

11. It was _____ he worked hard that he succeeded.

　　 A. because　　 B. since　　 C. as　　 D. for

10. The reason why I have to go is _____ if I don‘t.

　　 　A. that she will be disappointed

　　 B. because she will be disappointed

　　 C. on account of her being disappointed

　　 D. that she will be disappointing

9. That‘s _____ the Party called on us to do.

　　 A. what　　 B. that　　 C. how　　 D. why

8. _____ nothing to do with us.

　　 A. What he did is　 　

　　 B. What he has done is

　　 C. What did he do has　

　　 D. What he has done has