练习册

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    not polite to make fun of people who are in trouble. A. That’s B. We’re C. There’s D. It’s 答案:D It is+adj+to do sth. 结构中 it 是形式主语.to do sth．是真正主语. 【查看更多】

     

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           not polite to make fun of people who are in trouble.        
    [     ]
    A. That's          
    B. It's              
    C. There's

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    ________ not polite to make fun of people who are in trouble.

    [　　]

    A．That's
    B．It's
    C．We're
    D．There's

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