Three years ______ a short time. You have to study hard.

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问题 Three years ______ a short time. You have to study hard.

选项 A、is
B、are
C、be

答案A

解析表示时间、货币单位、长度距离等名词的复数形式作主语时，可将其看作成一个整体，谓语动词用单数形式。

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公共英语一级笔试

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