根据括号内的要求完成下列各题,每空一词(含缩略形式). Mary is singing with her sister.

问题描述:

根据括号内的要求完成下列各题,每空一词(含缩略形式). Mary is singing with her sister.
(改为否定句)
:Mary ( ) ( ) with her sister.
1个回答 分类:英语 2014-12-09

问题解答:

我来补答
isn't singing
 
 
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