—May I go and play with Dick this afternoon, Mum?—No, you can’t go out _______ y

题干

—May I go and play with Dick this afternoon, Mum?
—No, you can’t go out _______ your work is being done.

A．before

B．until

C．as

D．the moment

上一题下一题 0.64难度单项选择更新时间:2013-03-04 01:10:09

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