热心网友
回答时间:2025-03-20 15:16
hear sb doing sth
这是固定搭配,而该题是被动语态,可以被改写为sb. often heard the girl singing happily in her room.所以选C
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热心网友
回答时间:2025-03-20 15:09
B.to sing
被动,hear/make/see等词在被动中要补回to
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热心网友
回答时间:2025-03-20 15:15
选择B!
从题干可以看出是The girl was often heard那个女孩经常被听到高兴地在她房间里唱歌。
属于被动语态,在被动语态中,所有do的形式都要还原成to do不定式.
所以是 was heard to sing!
给你个列子
my teacher made me do a lot of homework
I was made to do a lot of homework by my teacher.
懂了吧?
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热心网友
回答时间:2025-03-20 15:10
be heard donging something 这是固定语法搭配
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