I don’t know ______ we can finish the work on time.

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问题 I don’t know ______ we can finish the work on time.

选项 A、that
B、if
C、when

答案B

解析句意：我不知道我们是否能按时完成工作。

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本试题收录于：公共英语一级笔试题库公共英语（PETS）分类

公共英语一级笔试

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I don’t know ______ we can finish the work on time.

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MarkTwainWasanAmericanWriter.OnedayheWenttoacitybyWain.HeWantedtoseeoneofhisfriendsthere.HeWasaverybusyMan

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