—Mum，I want to play computer games now.—Sorry，you can’t ______ you have finished

题干

—Mum，I want to play computer games now.
—Sorry，you can’t ______ you have finished your homework.

A．until

B．if

C．after

D．when

上一题下一题 0.64难度单项选择更新时间:2015-02-10 05:48:08

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