singing
                    - Andrew’s singing ______ song.It’s _______ American song.
 - Listen ! Helen is singing in the classroom .—It’s ______ .She hardly ever sings .
 - The twins are good at singing. —Yes, but I don’t think Lily sings as _________ as Jane.
 - Which is ________ to learn, singing or dancing, baby?
 - I enjoy singing and I want ________ a member of the Music Club.
 - Who’s singing in the next room?— It ____ be her . She has gone to New York.
 - Listen! Jane is singing in the next room.— It be her. She has gone to New York.
 - Who’s singing in the next room? Is it Lucy?—Itbe her. She has gone to New York.
 - Who’s singing in the next room? — It ____ be her . She went to New York yesterday evening
 - Listen!Helen is singing in the next room.—It _____be Helen .She has gone to Beijing.