—Someone is singing next door. Is it Amy?
—It ______ be her. She is giving a performance at the theatre now.
A.can’t | B.mustn’t | C.needn’t | D.won’t |
—Someone is singing next door. Is it Amy?
—It ______ be her. She is giving a performance at the theatre now.
A.can’t | B.mustn’t | C.needn’t | D.won’t |