40. A computer can only do ________ you have instructed it to do.

　　 A. how　　　　　 B. after　　　　　 C. what　　　　　 D. when

39.He got angry with　　 　　　　　　 　was against his opinion.

　 A. whom　 　　 　B. who　 　　　　C. whoever　　 　　 D. anyone

38.He made　　　　　 quite clear that he wouldn’t change his mind.　

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

37.He often thinks of　　 　　 　he can do more for his country.

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

36.He was interested in　 　　 　　　 　he had seen at the exhibition.

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

35.His suggestion　 　　 　to see the art exhibition interested every one of us.

　 A. that we go　　　　 　　　　　B. which we should go　

　 C. that we would go　　　　　　　 D. we would go　　

34. He wondered _______ his son was getting along with the experiment.

　　 A. when　　　　 B. how　　　　　 C. what　　　　 D. which

33.That is　　　　　　　 I lost my pen.

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

32.The thought　　　 　　 　he might fail in the exam worried him.

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

31.The reason 　　 　I have to go is　　　 　　 　my mother is ill in bed.　

　 A. why; why　　 B. why; because　 C. why; that　 　　 D. that; because