What worried her a bit is ______ her hair was turning grey.A．whetherB．ifC．whatD．_刷题宝

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What worried her a bit is ______ her hair was turning grey.

A．whether	B．if
C．what	D．that

上一题下一题 0.65难度单项选择更新时间:2017-08-15 11:03:35

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