36. 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

　　37. There are signs _______ restaurants are becoming more popular with families.
　　A) that
　　B) which
　　C) in which
　　D) whose

　　38. I think I was at school, _______ I was staying with a friend during the vacation
　　when I heard the news.
　　A) or else
　　B) and then
　　C) or so
　　D) even so

　　39. It is said that the math teacher seems _______ towards bright students.
　　A) partial
　　B) beneficial
　　C) preferable
　　D) liable

　　40. 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

　　41. ——"May I speak to your manager Mr. Williams at five o'clock tonight?"
　　——"I'm sorry. M. Williams _______ to a conference long before then."
　　A) will have gone
　　B) had gone
　　C) would have gone
　　D) has gone

　　42. 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

　　43. The growth of parta2time 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

　　44. Everybody _______ in the hall where they were welcomed by the secretary.
　　A) assembled
　　B) accumulated
　　C) piled
　　D) joined

　　45. Putting in a new window will _______ cutting away part of the roof.
　　A) include
　　B) involve
　　C) contain
　　D) comprise

　　46. 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

　　47. 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

　　48. 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

　　49. _______, 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

　　50. The British constitution is _______ a large extent a product of the historical
　　events described above.
　　A) within
　　B) to
　　C) by
　　D) at