The fact is ______ he has not been seen recently.A．whatB．thatC．whyD．if_刷题宝

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The fact is ______ he has not been seen recently.

A．what

B．that

C．why

D．if

上一题下一题 0.64难度单项选择更新时间:2012-04-05 10:29:39

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