46. We'll have to finish the job, _____.

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

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

45. You should make it a rule to leave things_____ you can find them again.

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

44. _____ you've got a chance. you might as well make full use of it.

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

43. －－I’m going to the post office.

　－－_____you're there. can you get me some stamps?

A. As　　　B. While　　　C. Because 　　D. If

42.It was only when I reread his poems recently _____I began to appreciate their beauty.

A. until　　 B. that　　 C. then　　 D. so

41._____it with me and I'll see what I can do.

A. When left　　 B. Leaving　 C. If you leave　 D. Leave

40.Why do you want a new job _____you've got such a good one already?

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

39.It was about 600 years ago ______ the first clock with a face and an hour hand was made.

　　　 A that　　　　　　　　　　　　 B until　　　　　　　　　　 C before　　　　　　　　　　　　 D when

38. ______, Mother will wait for him to have dinner together

　　　 A However late is he　　　　　　　　　　　　　　　　　 B However he is late

　　　 C However is he late　　　　　　　　　　　　　　　　　 D However late he is

37.After the war, a new school building was put up ______ there had once been a theatre

　　　 A that　　　　　　　　　　　　 B where　　　　　　　　　 C which　　　　　　　　　　　　 D when