Who helped you clean the classroom?Daming( ).( ）中是did还是was?
Who helped you clean the classroom?Daming( ).( ）中是did还是was?
rt,为什么
rt,为什么
英语人气：745 ℃时间：2020-02-29 08:55:36
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你好: Who helped you clean the classroom? Daming( did ). 因为前面已经有了行为动词help后面有主语Da ming谓语动词需要助动词即 Da minghelped meclean...
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