问题描述：
most of the ____ _____ very hot.
A.city ; is B.city ; are C.cities ; is D.cities ,was 这四个选项里面,which one is right?why?
A.city ; is B.city ; are C.cities ; is D.cities ,was 这四个选项里面,which one is right?why?
问题解答：
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