Lily is often heard （）a song in her room.Ato singLily is often heard （）a song in her room.Ato singBsingingCsingDsings
问题描述：
Lily is often heard （）a song in her room.Ato sing
Lily is often heard （）a song in her room.
Ato sing
Bsinging
Csing
Dsings
答
Ato sing
答
A
be heard to do sth 被听见干某事
祝你开心。
答
a
主动语态 hear sb do sth 变成被动be heard to do sth 必须加 to
答
B
祝你学习愉快！ (*^__^*)
请及时采纳，多谢！
答
B hear sb.do/ doing 改成被动 be heard to do/ doing
经常被听到 在唱歌,hear sb.do 是听到完整过程,听完
doing是听到在干嘛.
记得采纳一个答案,否则我们拿不了分,升不了级的,