Scientists didn’t know much about lung cancer _____.A、before longB、until recentlyC、long beforeD、in the past few years

题目
Scientists didn’t know much about lung cancer _____.

A、before long

B、until recently

C、long before

D、in the past few years


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更多“Scientists didn’t know much about lung cancer _____. ”相关问题
  • 第1题:

    ______ I tell you yesterday not to touch that dog!

    A、Haven't

    B、Hasn't

    C、Didn't

    D、Aren't


    参考答案:C

  • 第2题:

    _________ she practice her violin yesterday? No, she _________.

    A、Was, wasn’t

    B、Did, didn’t

    C、Was, didn’t

    D、Did, wasn’t


    正确答案:B

  • 第3题:

    4. The meeting ______ begin ______ the last man came.

    A. didn’t ;until

    B. not; until

    C. doesn’t; until

    D. will; until


    正确答案:A
    4.A【解析】not... until表“直到……才……”,由后面 “came”可知为一般过去式。

  • 第4题:

    We _____ like coffee before_____ all.

    A.don’t … at

    B.didn’t … at

    C.didn’t … in

    D.don’t ...in


    答案:B

  • 第5题:

    -- Ann is in hospital.

    -- Oh, really? I __ know. I __ go and visit her.

    A. didn’t; am going to B. don’t; would

    C. don’t; will D. didn't; will


    正确答案:D

  • 第6题:

    Sarah had her washing machine repaired the day before yesterday,__________she?

    A.had
    B.did
    C.didn't
    D.hadn't

    答案:C
    解析:
    考情点拨:本题考查反意疑问句。
    应试指导:句意:Sarah前天把她的洗衣机拿去修理了,是吗?have+宾语+repaired里的have是行为动词,不是助动词,另外,句子中有明显的过去时间状语,所以反意疑问句用didn’t。