There is some doubt _______ we can get the first place in the competition.A．whe_刷题宝

题干

There is some doubt _______ we can get the first place in the competition.

A．whether

B．if

C．that

D．how

上一题下一题 0.64难度单项选择更新时间:2015-01-15 06:08:16

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