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题目
I heard him sing in the classroom改为被动语态?
someone say it should be modified like
he was heard to sing in the classroom.
is that correct?

提问时间:2021-01-05

答案
He was heared singing in the classroom.
这里singing 表状态,意为“我听到他一直在唱”.
不定式to sing 表将来的,这里用不定式的话是不对的.
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