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  • 語法題,

    語法題,
    I suppose you are not serious,________?
    A.do I B.don't I C.are you D.aren't you
    這個什么情況下用don't
    ________,I should ask them some questions.
    A.Should they come to us B.If they come to us
    C.Were they come to us D.Had they come to us
    Some cities have passed laws that allow coal and oil_____only if their sulfur content is low.
    A.burning B.to burn C.being burned D.te be burned
    allow sb to do 和allow sb dong 都可以的吧
    為什么不選其他的,請大家給我個詳盡的解釋哈,
    英語人氣:662 ℃時間:2020-03-27 23:21:40
    優(yōu)質(zhì)解答
    1.C
    主語是第一人稱,主句謂語是think,believe,expect,suppose,imagine等引導(dǎo)的定語從句,疑問部分與賓語從句相對應(yīng)構(gòu)成反意疑問句.
    I don't think he is bright,is he?
    We believe she can do it better,can't she?
    目前我沒遇到過用don't 的
    2.A,虛擬語氣的省略形式,是對將來的虛擬,基本句型為:
    If sb did sth/were to do sth/should do sth,sb should do sth.
    前面部分只有那三種形式!自己去套
    A 選項完整形式為If they should come to us,
    3.可以確定只有allow sb to do的形式,沒有allow sb doing,煤和石油是被燒,故選D
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