变被动语态,IheardJaneplayingthepianoinherroom.(*^o^*)
答案写的是Janewasheardplayingthepianoinherroom.可老师讲的是:一些使役动词和感官动词用不定式作宾补,这时不定式要省略to,但变被动语态时必须加上to.好纠结啊...我认为应该是:Janewasheardtoplaythepianoinherroom.