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