--- When can I play puter games, Mum?---______ your homework _______.A.Until, finishesB.Not until, will be finishedC.Until ,is finishedD.Not until, is finished
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D解析本题考查的是until引导的条件状语从句,由于your homework不能发生finish的动作,故选用被动语态,同时在条件状语从句中,主句为祈使句,而从句用一般现在时,代替将来时,故用一般现在时,故选