A: Listen! Is it Linda singing in the next room? B: No, it __________ be her. She is still in Shanghai.
Don’t talk loudly. The students_______lessons.
—Lingling, where ________Tony _________from? —He comes from England.
He is a_______, and he works in Beijing Hospital.
---Your schoolbag looks very nice! --- .
I don’t like science _______ it’s difficult.