13. Americans eat _____________ vegetables per person today as they did in 1910. (02上海春季 )

　 A. more than twice　　　　　　　　　　　　　　　　 B. as twice as many

　 C. twice as many as　　　　　　　　　　　　　　　　 D. more than twice as many

12. - Did you remember to give Mary the money you owed her?

　 - Yes, I gave it to her ____________ I saw her.　 ( 01春季 )

　 A. while　　　　　　　　　 B. the moment　　　　　　　 C. suddenly　　　　　 D. once

11. The men will have to wait all day ____________ the doctor works faster.　 ( 01春季 )

　 A. if　　　　　　　　　　　　 B. unless　　　　　　　 C. whether　　　　　　 D. that

10. The WTO cannot live up to its name _____________ it does not include a country that is home to one fifth of mankind. ( 00 )

　 A. as long as　　　　　　 B. while　　　　　　　　 C. if　　　　　　　　　　　 D. even though

9. Someone called me up in the middle of the night, but they hung up ____________ I could answer the phone. ( 00 ) 　

A. as　　　　　　　　　　　　　　 B. since　　　　　　　　 C. until　　　　　　　　 D. before

8. We’ll have to finish the job, _____________.　 ( 99 )

　 A. long it takes however　　　　　 B. it takes however long

　 C. long however it takes　　　　　 D. however long it takes

7. ____________ you’ve got the chance, you might as well make full use of it. ( 99 )

　 A. Now that　　　　　　　　　　 B. After　　　　　　　　 C. Although　　　　　 D. As soon as

6. You should make it a rule to leave things _____________ you can find them again. ( 99 )

　 A. when　　　　　　　　　　 B. where　　　　　　　 C. then　　　　　　　　　 D. there

5. - I am going to the post office.

- ____you’re there, can you get me some stamps? ( 99 )

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

4. After the war, a new school building was put up _____________ there had once been a theatre. ( 97 )

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