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The children can’t watch TV unless they_...

The children can’t watch TV unless they_______ to.

A.allow B.will allow

C.are allowed D.will be allowed

 

C 【解析】 句意:除非允许孩子们看电视,否则他们不能看。 考查被动语态辨析。allow 一般现在时;will allow 一般将来时;are allowed 一般现在时的被动语态;will be allowed 一般将来时的被动语态。unless是引导条件状语从句的连词,主句有情态动词can,从句用一般现在时,排除B和D选项。空格前主语they指代children,与谓语动词allow之间是被动关系,所以空格处用一般现在时的被动语态。故选C。  
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