1. — Have you known each other for long?

　　— Not very long, ____ we started to work in the company.

　　A. after B. before C. when D. since

　　2. — Did you enjoy yourself at the party?

　　?Sorry to say I didn’t. It was ____ a meeting than a party.

　　A. much of B. more like C. less of D. more or less

　　3. He is rather difficult to make friends with, but his friendship, ____, is more true than any other.

　　A. once gained B. when to gain

　　C. after is gained D. while gaining

　　4. The river, ____ are covered with trees, is very long.

　　A. which banks B. of which banks

　　C. whose the banks D. the banks of which

　　5. ____ it will do us harm or good remains to be seen.

　　A. If B. Whether C. That D. Where

　　6. We should do more such exercises in the future, I think, ____ we did yesterday.

　　A. as B. which C. that D. than

　　7. I am so glad that I have found the same modern computer ____ I am working on.

　　A. which B. as C. that D. where

　　8. ____ method you choose, so long as you finish the job on time.

　　A. It isn’t a matter to me what B. What doesn’t matter is that

　　C. It doesn’t matter to me which D. No matter which

　　9. It was quite a serious mistake, ____caused by carelessness.

　　A. which I think was B. I think which was

　　C. which I think it was D. I think which it was

　　10. The young man went into the cinema and after ____ seemed half an hour he came out.

　　A. that B. it C. what D. which

　　11. One of the men held the view ____ the book said was right.

　　A. what that B. what C. that D. that what

　　12. Soon they got to the bank. ____stood a big pine tree.

　　A. In front of which B. There C. Where D. It

　　13. He was impolite to the Custom Officer, ____, of course, made things even worse.

　　A. who B. that C. what D. which

　　14. After living with his grandparents in the countryside for ten years, the boy returned to the big city ____ his parents worked.

　　A. which B. where C. that D. when

　　15. ____ much advice I gave him, he did exactly what he wanted to.

　　A. How B. Whatever C. No matter D. However

　　16. It is not I but Mr. Green who ____ in charge of the company.

　　A. is B. am C. are D. was

　　17. The students are talking about the strange people and stories ____ they met in the adventure.

　　A. that B. which C. what D. whom

　　18. The first thing ____ you should do is to learn all the new words by heart.

　　A. what B. that C. which D. who

　　19. Is this the very factory ____ he visited last month?

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

　　20. He went home for lunch ____ the clock struck twelve.

　　A. while B. immediately C. right away D. at once