-- When can I play computer games, Mum? ...

-- When can I play computer games, Mum?

--______ your homework _______.

A．Until, finishes	B．Not until, will be finished
C．Until ,is finished	D．Not until, is finished

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，故选答案为D

考点分析：

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