she is often heard to to sing in the room 有无语病

she is often heard to to sing in the room 有无语病 He is often heard -----in the next room.A sing B to sing C s 非谓语动词句型问题⒈She is often heard to sing in the next room.(动词sin he was often heard ()in the next room.A.to sing B.sing I often heard () (sing) in the room she was heard to in the room she was often heard to sing in the morning.怎翻译 she ( ) often ( )【hear】to sing in her room that means she is often heard ( ) in the room The girl is often heard ____ (to sing / singing )happily in She often hears someone --------songs in the room.A.to sing I often hear her( )in the next room.a/sing b/is singing c/to