()8.—How long does it take to get to the airport?
—Forty minutes. But it's foggy today. I'm not sure ______ the highway will close soon. Let's set off earlier.

A.whether
B.when
C.how
D.why

A

()9.Don't throw away the waste paper. It needs ______ so that it can be reused.
A.to destroy
B.destroying
C.to collect
D.collecting

D

( )10.—Excuse me. Can you tell me ______?
—Of course. Turn left at the first crossing, and it's just on your right.

A.where is the library
B.where are the libraries
C.how I can get to the library
D.how do I find the library

【解析】：
本题考查的是宾语从句的用法。在宾语从句中，从句部分需要用陈述句的语序，即“疑问词+主语+谓语”的结构。分析题目给出的选项，A项和B项的“where is the library”和“where are the libraries”都是疑问句的语序，不符合宾语从句的用法，故排除。D项“how do I find the library”同样是疑问句的语序，也不符合宾语从句的用法，故排除。而C项“how I can get to the library”是陈述句的语序，且根据答语“Turn left at the first crossing, and it's just on your right.”可知，问句是在询问如何到达图书馆，因此C项符合题意。
【答案】：
C

( )11.
( )12.
( )13.
( )14.
( )15.
( )16.
( )17.
( )18.
( )19.
( )20.

11. A
12. B
13. D
14. A
15. C
16. D
17. B
18. B
19. C
20. C