问题标题:
--Whereisfinishtheworktoday,Mom?--She____bebroom,butIamnotsure.AmustbeBcan'tbeCmaybeDmaybe
问题描述:

--Whereisfinishtheworktoday,Mom?--She____bebroom,butIamnotsure.

AmustbeBcan'tbeCmaybeDmaybe

吕英华回答:
  D
程冠晓回答:
  能不能麻烦你解释一下C和D有什么区别
吕英华回答:
  maybe是副词maybe是情态动词+动词在这里只能是maybe,因为副词不能作谓语
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