It was at four o'clock in the afternoon ____ he and his grandpa reached the museum in Guanghan. A．wh...
2023-02-01 16:18:29 163次 2010届三轮回扣语法专项训练（代词和数词） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It was at four o'clock in the afternoon
____ he and his grandpa reached the museum in Guanghan.
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A．while
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B．that
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C．when
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D．as
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