在主動語態(tài)中.感官動詞(如see、heard等)后的動詞用三種1.原形2.動名詞(表示正在進(jìn)行) 3.動詞過去分詞(表示賓語的被動) 結(jié)構(gòu)為:感官動詞+賓語+三種動詞結(jié)構(gòu).其中to 是被省略的.
而在被動語態(tài)中.要把to還原.
則:感官動詞+賓語+三種1.to do 2.to be doing 3.to be done
根據(jù)你的句子.指的是被動語態(tài)中的第一種情況.
所以用B.
The girl was often heard ( ) happily in her room.
The girl was often heard ( ) happily in her room.
A.sing B.to sing C.singing D.sings
可是也有人說是C,究竟是哪個呢?
A.sing B.to sing C.singing D.sings
可是也有人說是C,究竟是哪個呢?
英語人氣:983 ℃時間:2019-11-19 06:06:19
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