Our English teacher is often heard ____(sing) in her room.

Our English teacher is often heard ____(sing) in her room. Lily is often heard （）a song in her room.Ato sing I often heard () (sing) in the room He is often heard -----in the next room.A sing B to sing C s we often heard her sing in the next room 为什么动词不是ing形式的? Sally is often heard _____in her sitting room.A sing B to si she is often heard to to sing in the room 有无语病 Last year,he often heard Tom (sing) in next room Millie si often heard sing in the next room改错 The girl is often heard ____ (to sing / singing )happily in I often hear her sing songs in English in her room.这里的宾补为什么是 the teacher often< >（sing） english songs for her students !