20、It was only several days ______ he realized the truth that he had been affected with AIDS．

A．until         B．since        C．before          D．a(chǎn)s

20、C

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科目：高中英語(yǔ) 來(lái)源： 題型：

It was only several days ______ he realized the truth that he had been affected with AIDS．

A．until         B．since        C．before          D．a(chǎn)s

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科目：高中英語(yǔ) 來(lái)源： 題型：

It was only several days ______ he realized the truth that he had been affected with AIDS.

      A．before                B．since                   C．until                   D．a(chǎn)s

查看答案和解析>>


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