题目内容
—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
C
【解析】此题容易误选B,误认为这是考查not...until...结构。句中的your work is being done表明“你正在做作业”,as表原因。
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