英语句型转换,.主动变被动!
问题描述：
英语句型转换,.主动变被动!
Q：We heard Betty sing a song just now.
Betty ___ ___ ___ ___ a song just now by us. 我认为应该填was heard,不过这道题给了四个空,我不知道该怎么填.请给个答案啊!
答
was heard to sing
注意:感官动词和使役动词在变被动语态时,后面的不定式要添上一个to.
例:He was made to do much work last week.
祝你进步!