You will have to stay at home all day ______ you finish all your homework. A．ifB_刷题宝

题干

You will have to stay at home all day ______ you finish all your homework.

A．if

B．unless

C．whether

D．because

上一题下一题 0.64难度单项选择更新时间:2011-05-12 11:39:48

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