49.To play fair is as important as ＿＿＿＿,I think.

A.to play well　　　　　　　 B.play well

C.we play well　　　　　　　 D.playing well

48.Lily has some idea ＿＿＿ she’s going to be when she grows up.

A.what　　　　 B.that　　　　 C.as　　　　　 D.which

47.She tried every way ＿＿＿ she could find to solve the problem.

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

46.＿＿,so he didn’t come to school last week.

A.Though he was ill　　　　 B.Being ill

C.Having been ill　　　　　 D.He was ill

45.＿＿＿does he do his work well,＿＿＿ he helps others with their work.

A.Not only；but also　　　　her；nor

C.Either；or　　　　　　　　 D.Both；and

44.＿＿the text a second time,the meaning will become clearer to you.

A.Read　　　　　　　　　　　 B.Reading

C.If reading　　　　　　　　 D.When you read

43.It was quite a long time＿＿＿ I made it out what had happened.

A.after　　　 B.before　　　 C.when　　　 D.since

42.John must be in the chemistry lab,＿＿＿ ?

A.mustn’t he　　　　　　　　 B.needn’t he

C.isn’t he　　　　　　　　　 D.shouldn’t he

41.-- Helen must obey her parents.

-- Oh,she must,＿＿ ?

A.must she　　　　　　　　　 B.mustn’t she

C.shouldn’t she　　　　　　 D.should she

40.Information technology is taught in most schools,＿＿＿we have entered the information society.

A.so　　　　　 B.while　　　　　 C.still　　　　　 D.for