I heard your daughter _____in the next room at ten last night.A. sang B. sing C. singing D. sings为什么用singing?

问题描述:

I heard your daughter _____in the next room at ten last night.A. sang B. sing C. singing D. sings
为什么用singing?

听到某人正在做某事

at ten 表示此处是过去进行时,所以用doing

hear sb doing sth 听见某人正在做某事
昨晚十点我听见你女儿正在隔壁房间唱歌
不明白的再问哟,请及时采纳,多谢!

hear sb doing sth 听见某人正在做某事

这里有个具体的时间at ten,指的是在十点时,听见对方的女儿正在哭。