英语句子成分,句子结构
(1)Isawhimplayingbasketballyesterday.
I是主语,saw谓语,him宾语,playingbasketball是宾补,yesterday是状语,
(2)Hewasseenplayingbasketballyesterday.
He是主语,was系动词,seen表语,playingbasketball是主补,yesterday是状语,
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补足语是什么?
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