48.(C)otherwise用来表示一种含蓄的虚拟假设.因为是对过去的情况的假设.所以应该用would have come形式. 49.(B)所给的四个选项中没有一个表示对未来的情况的虚拟的形式should+动词原形.或是were to do.因此可以断定if引导的条件句在这里最真实的条件句.用一般现在时表示一般将来时.故(B)是正确答案. 50.(A)这是一个混合虚拟语气的句子.if条件句表示的是对过去情况的假设.而主句是对现在(now)的情况的假设.故用would tell形式. 查看更多

 

题目列表(包括答案和解析)

--I didn't tell my parents that I Would leave home.

    --You ________ when you left home since you are living with them.

   A. ought to have     B. might have       C. should             D. must

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The teacher’s words left us _______ .

   A. think                         B. to think     C. thought                 D. thinking

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—— Excuse me, is this Mr. Brown’s office?

—— I’m sorry, but Mr. Brown___works here.He left about three weeks ago.

 A. not now     B. no more  C. not still     D. no longer

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That we need is not money but time.

         A      B  C          D

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Three people spoke at the meeting.____was a doctor; ____was a student; ___was a teacher.

    A. He; she; I                B. The first; the other; the rest

    C. One; another; the third       D. This; that; the last

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