50. --- I think he is really smart.

　 ---But he _____ his success to his teachers and his hard work.

A. offers　　　　　　　 B. owes　　　　　　　　　　　　 C. gives　　　　　　　　　　　　　　　 D. leads

49. My father was born in the year ____ the First World War broke out.

A. on which　　　　　 B. that　　　　　　　　　　　　　 C. when　　　　　　　　　　　　　　　 D. in that

48. He often drives his car ____ a speed of eighty miles an hour.

A. at　　　　　　　　　　　　　　 B. with　　　　　　　　　　　　 C. using　　　　　　　　　　　　　　　 D. of

47. The party was going well until my parents arrived , then everything ____.

A. Went wrong　 　 B. went wrongly　　　　　 C. made wrong　　　　　　　　　　 D. made wrongly

46. The girl likes writing very much and her Chinese teacher _____ highly of her writing.

A. says　　　　　　　　　 B. thinks　　　　　　　　　　　 C. considers　　　　　　　　　　　　 D. believes

45.The place ____ I was brought up is a beautiful place.

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

44. His parents wouldn’t let him marry anybody ___ family was poor.

A. of whom　　　　　 B. of whose 　　　　　　　　 C. whose　　　　　　　　　　　　　　 D. which

43. The poor man ___ lost his money just now is called John.

A. whose　　　　　　　 B. which　　　　　　　　　　　 C. who　　　　　　　　　　　　　　　　 D. whom

42.--- Why didn’t you tell him about the meeting?

　 --- He rushed out of the room ____ I could say a word.

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