48.(C)otherwise用來表示一種含蓄的虛擬假設(shè).因為是對過去的情況的假設(shè).所以應(yīng)該用would have come形式. 49.(B)所給的四個選項中沒有一個表示對未來的情況的虛擬的形式should+動詞原形.或是were to do.因此可以斷定if引導(dǎo)的條件句在這里最真實的條件句.用一般現(xiàn)在時表示一般將來時.故(B)是正確答案. 50.(A)這是一個混合虛擬語氣的句子.if條件句表示的是對過去情況的假設(shè).而主句是對現(xiàn)在(now)的情況的假設(shè).故用would tell形式. 查看更多

 

題目列表(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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