You ________ stop when the traffic light turns red. 

— Shall we take a taxi?
— No, we         . It’s not far from here.

That man ______ be my English teacher. He has gone to Canada.
A. needn’t              B. mustn’t              C. can’t

--- I hope Jim won’t mind lending you his new digital camera.
--- He ___________. I have already borrowed one from my cousin, David.

—Mike’s parents have bought a 2-floor house with a swimming pool.
— Oh, it________ be very expensive.

—Must I finish the work today, Mom?
—No, you       . You can finish it tomorrow .
A. mustn’t                B. can’t                      C. needn’t

— Can I go to the movie, Mum?
— Certainly. But you _______ be back by ten o’clock.

— Is Kate coming to the party this evening?
— No, she _________ be the party. She________ to the UK.

—Must I finish the paper tonight?    —No, you _______ finish it tomorrow.

---I think Miss Lin must be in the library. She said she would go there.
---No, she __________be there. I have just been there.