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    -- How did she get infected? -- She the viruses without any protection. A. exposed to B. had exposed to C. was exposed to D. had been exposed to 【查看更多】

     

    题目列表(包括答案和解析)

    —How did she get infected?

    —She ____ the viruses without any protection.

    A．exposed to

    B．had exposed to

    C．was exposed to

    D．has exposed to

     

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    --How did he get infected?

    --She ____the viruses without any protection.

    A．exposed to

    B．had exposed to

    C．was exposed to

    D．had been exposed

     

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    －How did she get infected?

    －She _________ the viruses without any protection．

    [　　]
    A．

    exposed to

    B．

    had exposed to

    C．

    was exposed to

    D．

    had been exposed to

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