42. -_____can I keep this book?

-Two weeks, and you can renew it.

A. How long　　　　　 B. How often　　　　 C. How far　　　　 D. How much

41. -Why didn't you give me a phone call?

-I_______. But nobody answered the phone.

A. do　　　　　　 B. did　　 　　　C. will　　　　　 D. have

40. -________to give the letter to Mr Wang. It's very important.

-No, I won't.

A. Remember　　　　　 B. Be sure　　 C. Don't forget　　　 D. Make sure

39. I think　　　 our duty to keep our environment clean and tidy.

A. that　　　　　 B. this　　　　　 C. it　　　　　　 D. one

38. It's seven o'clock in the afternoon, but they are 　　　having a meeting.

A. already　　　　 B. still　　　　　　 C. yet　　　 D. ever

37. -________you ever________to Beijing?

-Yes, I went there last year.

A. Have. .. been　　　 B. Have. . . gone　　 C. Did.. . go　　　 D. Are... going

36. Mary tried her best to find a good job, but she had no　　　　

A. trouble　　　 B. time　　　　 C. idea　　　　　 D. luck

35. Salt is very important in our daily life. It 　　　in East and South China.

A. produces　　　 B. is produced　　　　 C. be produced　　　 D. is producing

34. The sign________is often found in a reading-room, or a library.

A. NO PHOTOS 　　　　　　　B. KEEP QUIET

C. THIS SIDE UP　　　　　　 D. OPEN

33. -Could you tell me what you think about Hainan ?

-Oh, if you get a chance_______there, take it.

A. going　　　　 B. gone　　　　 C. go　　　　　　 D. to go