we often hear her _______(sing) English songs in the next room.主要要原因,

问题描述:

we often hear her _______(sing) English songs in the next room.
主要要原因,

是 singsing

应该填singing ,hear somebody doing ,所以后面填动词的ing 形式

singing .
hear doing 固定用法

singing

sing
hear doing sth