问题描述：
--- Do you know ___ we'll get there at 3:00 this afternoon?--- I am afraid we'll be late.
单选题
10.--- Do you know ___ we'll get there at 3:00 this afternoon? --- I am afraid we'll be late. A whether B why C how D that
单选题
10.--- Do you know ___ we'll get there at 3:00 this afternoon? --- I am afraid we'll be late. A whether B why C how D that
问题解答：
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