when you work___,you ___ go swimmingwhen you work___(be done),you ___(can't/mustn't/may?)go swimming?一个空是适当形式 第二个是选一个..请说明原因哦,谢谢~

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whenyouwork___,you___goswimmingwhenyouwork___(bedone),you___(can''t/mustn''t/may?)goswimming?一个空是适当形式第

when you work___,you ___ go swimmingwhen you work___(be done),you ___(can't/mustn't/may?)go swimming?一个空是适当形式 第二个是选一个..请说明原因哦,谢谢~
when you work___,you ___ go swimming
when you work___(be done),you ___(can't/mustn't/may?)go swimming?
一个空是适当形式 第二个是选一个..
请说明原因哦,谢谢~

when you work___,you ___ go swimmingwhen you work___(be done),you ___(can't/mustn't/may?)go swimming?一个空是适当形式 第二个是选一个..请说明原因哦,谢谢~
is done
may
这句话的意思是,当你的作业完成时,你可以去游泳.
锁业被完成,要用被动语态is done.
后面半句根据句意应该是肯定句,所以不能用can't/mustn't.
祝你学习进步,更上一层楼!如果对我的答案满意,请记得采纳,谢谢!(*^__^*)……

done,can‘t

haven't been done
can't

hasn't been done , can't
工作没完成(意思是被完成),就不准去游泳。

have done may
意思是当你作业已经做完时 你可以去游泳
因为作业并未做完 而是对未来的假设、虚拟 所以用现在完成时 这是虚拟语气的规定用法 所以用have done 后面的表示可以的意思 所以用may