Iisten!Helen is singing in the next room.It ( ) be Helen.She

Iisten!Helen is singing in the next room.It ( ) be Helen.She helen is singing in the next room .-It--be helen.she has gon _____Listen!Helen is singing in the next room. Listen!Helen is singing in the next room. -Who is singing in the next room.-_ must be Marie A.It B.She Listen,Mary is singing in the next room.That ___ be Mary.She WHO's singing in the next room?is that ann it___ be her .she who is singing in the next room?_____must be Maria.空格应该填It还是 who is singing next room?is it Maria?no ,it ?be her.she is s Is Helen( )in the music room?(填空） LISTEN,MARY IS SINGING IN THE NEXT ROOM.THAT__BE MARY.SHE IS helen got 100 in her exam.she is over the moon about it中over