16. The professor could hardly find sufficient grounds ________ his arguments in favour of the new theory.

　　A) to be based on

　　B) to base on

　　C) which to base on

　　D) on which to base(D)

　　17. There are signs ________ restaurants are becoming more popular with families.

　　A) that

　　B) which

　　C) in which

　　D) whose(A)

　　18. I think I was at school, ________ I was staying with a friends during the vacation when I heard the news.

　　A) or else

　　B) and then

　　C) or so

　　D) even so(A)

　　19. It is said that the math teacher seems ________ towards bright students.

　　A) partial

　　B) beneficial

　　C) preferable

　　D) liable(A)

　　20. In order to show his boss what a careful worker he was, he took ________ trouble over the figures.

　　A) extensive

　　B) spare

　　C) extra

　　D) supreme(C)

　　21. —“May I speak to your manager Mr. Williams at five o’clock tonight?”

　　—“I’m sorry. Mr. Williams ________ to a conference long before then.”

　　A) will have gone

　　B) had gone

　　C) would have gone

　　D) has gone(A)

　　22. You ________ him so closely; you should have kept your distance.

　　A) shouldn’t follow

　　B) mustn’t follow

　　C) couldn’t’ have been following

　　D) shouldn’t have been following(D)

　　23. The growth of part-time and flexible working patterns, and of training and retraining schemes, ________ more women to take advantage of employment opportunities.

　　A) have allowed

　　B) allow

　　C) allowing

　　D) allows(D)

　　24. Everybody ________ in the hall where they were welcomed by the secretary.

　　A) assembled

　　B) accumulated

　　C) piled

　　D) joined(A)

　　25. Putting in a new window will ________ cutting away part of the roof.

　　A) include

　　B) involve

　　C) contain

　　D) comprise(B)

　　26. Living in the western part of the country has its problems, ________ obtaining fresh water is not the least.

　　A) with which

　　B) for which

　　C) of which

　　D) which(C)

　　27. In the ________ of the project not being a success, the investors stand to lose up to $30 million.

　　A) face

　　B) time

　　C) event

　　D) course(C)

　　28. The manager would rather his daughter ________ in the same office.

　　A) had not worked

　　B) not to work

　　C) does not work

　　D) did not work(D)

　　29. ________, he does get annoyed with her sometimes.

　　A) Although much he likes her

　　B) Much although he likes her

　　C) As he likes her much

　　D) Much as he likes her(D)

　　30. The British constitution is ________ a large extent a product of the historical events described above.

　　A) within

　　B) to

　　C) by

　　D) at(B)