30. The boss said to the secretary, “If you work well, you ______ have a rise.”

　　　 A. must　　　　　　　　　　　 B. ought　　　　　　　　　　 C. would　　　　　　　　　　　　　 D. shall

29. In science fiction we read of flying saucers travel through _____ space, so people want to have ______ better knowledge of the universe.

　　 A. the ; a　　 　　　　 B. / ; /　　　 　　　 C. the ; /　　　 　　　　　　　 D. / ; a

28. If you _____your promise, the results will be sure to satisfy you.

　　 A. carry out　　 　　　 B. carry on　 　　 C. keep on　　　 　　　　　　 D. keep out

27. -- There are ______ such books here.

　 -- I only need ______ these books on this shelf.

　　 A. eight dozens ; one dozen　 　　　　　　　　　　　　 B. eight dozens of ; one dozen of

　　 C. eight dozen ; one dozen　 　　　　　　　　　　　　　　 D. dozens of ; one dozen of

26. Michael never dreamt of ______ for him to be sent abroad very soon.

　 A. being a chance　　　　　　　　　　　　　　　　　　　　　　　　 B. there’s a chance　　

C. there to be a chance　　　　　　　　　　　　　　　　　　　　 D. there being a chance

25. How many men does your uncle _____ for him?

A. have worked　　　　 B. have to work　　　　 C. have working　 D. have been working

24. _______ for two miles, the car broke down.

　　 A. I drove my car　　　 B. Having run　　 C. To have driven　　　 D. Having driven

23. -- What about the person?

　　 -- Seldom in all my life _____ such a _______ person.

　　 A. I met; determining　　　　　　　　　　　　　　　　　 B. I have met; determining

C. did I meet; determined　　　　　　　　　　　　　　　　　 D. have I met; determined

22. He came here without friends or ______and made his fortune.

A. possessions　　 　　B. possession　　 C. wealths　　　　 D. good

21. Reading is to the mind ______ food is to the body.

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