76. “What has happened to John?" "I don't know. He ____ lost.

　　　 A. may have gotten　 B. might get C. can have gotten　 D. ought to get

75.The door ought to ______　 a week ago.

　　　 A. have fixed　　　 B. be fixed　　　　 C. get fixed　 D. have been fixed

74.The child ought to _______ to bed earlier last night.

　　　 A. put　　　　　　　 B. be put　　　　　 C. have put　 D. have been put

73.You ought ______ your homework last night, but you didn’t.

　　　 A. do　　　　　　　 B. to do　　　　　 C. did　　　　 D. to have done

72. When the bell rang, he said he ____ better go and see who it was.

　　　 A. did　　　　　　　 B. had　　　　　　 C. should　　 D. would

71. You had better _______ three again,

A. not to go　　　　 B. not go　　　　　 C. not going　 D. not be gone

70. Speak clearly,　 ________ they can understand you.

　　　 A. so that　　　　　 B. even that　　　 C. so as to　 D. even though

69. They kill animals not ______ their meat but ____ their skin.

　　　 A. for; by　　　　　 B. with; for　　　 C. for; for　 D. use; use

68.It's very cold outside, you _____pat on your coat.

　　　 A. had better　　　 B. may　　　　　　 C. ought　　　 D. can

67. Tom was away from school far a month so now he's got to work hard to ______ his classmates.

　　　 A. keep up　　　　　 B. keep up with　　 C. catch up　 D. catch up with