We often hear Tom sing____(happy）in the next room

We often hear Tom sing____(happy）in the next room I often hear her sing in the next room.We must repair the co 英语完形填空 we often hear dick (play)the piano in the next room We often hear her sing in the next room中为什么用sing而不用sings hear room often she in we the next sing 连词成句 英语翻译We often hear her sing in the next room.这里应该不是完全符合hear s I often hear him _____ ( sing ) in the next room. i often hear a boy （） the piano in the next room I often hear him（）in the next room.（sing） I often hear him _____ ( sing ) in the next room.为什么答案上要求加in I often hear the boy ()English in the next room.A read B rea I often hear her _____ (sing)in the next room last year.