18. I’m sorry you’ve been waiting so long, but it’ll still be some time ____ Brian get back. (2008北京卷)

A. before 　　　　B. since　 　　　　C. till　 　　　　　D. after

17. —Did you return Fred’s call?

　 —I didn’t need to ____ I’ll see him tomorrow. (2008北京卷)

　 A. though　　　　 B. unless　 　　　C. when　　　　　 D. because

16. ______the Internet is of great help, I don’t think it’s a good idea to spend too much time on it. (2008湖南卷)

A. If　 　　　　B. While　 　　　　C. Because 　　　　D. As

15. I thought we’d be late for the concert, 　　　we ended up getting there ahead of time. (2008湖南卷)

A. but　　　 　　B. or　　　　 　　　C. so　　　 　　　　D. for

14. My English teacher’s humor was ____ make every student burst into laughter. (2008江西卷)

A. so as to　　　 B. such as to　　　　 C. such that　　　 D. so that

13. — Have you got any idea for the summer vacation?

—I don't mind where we go ______ there's sun, sea and beach. (2008全国卷1)

A. as it 　　　　　 　　B. as long as 　　　　　 C. now that 　　　　　 D. in order

12. A small car is big enough for a family of three ____ you need more space for baggage. (全国卷II)

A. once　 　　　B. because　 　　　　C. if　 　　　　　D. unless

11. He found it increasingly difficult to read, _____his eyesight was beginning to fail(2008山东)

A. though 　　　　 　B. for 　　　　　　　 　　　 C. but 　　 　　　D. so

10. In some places women are expected to earn money ____ men work at home and raise their children. (2008四川卷)

　 A. but　　　　　 　B. while 　　　　C. because　　　 D. though

9. There were some chairs left over _____ everyone had sat down. (2008四川卷)

　 A. when　 　　　　B. until　　　　 C. that　　　 D. where