40. China has______the WTO for some years.

A. taken part in　　　　　 B. joined

C. been a member of　　　　　 D. entered

39. Lucy’s mother told her to come back earlier, ______.

A.　 so she does　　　　 B.　 so it is

C.　 so did she　　　　　 D.　 and so she did

38. -Hello! Would you like to go to the party with me to-night?

-I’m sorry,　 I can’t　 .　 Mother won’t ______me to go out in the evening.

A. let　　　　　　　 B. allow　　　　 C. offer　　　　　 D. ask

37. You can’t　　　　 imagine ______ when he received these nice birthday presents.

A. how excited was he　　　　 B.　 how exciting he was

C. how he is excited　　　　　　 D.　 how excited he was

36. -Lucy isn’t 　　　　　so young as she______　 is she?

-Yes,　 she is______her friends.

A. expects;　 as young as

B. thinks;　 no younger than

C. appears;　 younger than

D. looks;　 the oldest of