Bài tập cấu trúc Have to và cấu trúc Must

    1. Nowadays Vietnamese pupils ______ learn English at school.

    2. You ________ smoke in public areas.

    3. Today my father ______ go to work. It’s a holiday.

    4. You ______ scream. I can hear you clearly.

    5. You ___________ quiet in the library.

    6. You _______ use a smartphone on the plane.

    7. He ________ come to the dentist with me.

    8. At the restaurant, you _______ pay the bill but you don’t have to eat everything.

    9. She is sure she heard something, but it _______ have been the wind.

    10. You _______ obey the rules or you will be expelled.

    11. I ________ go to school right now. My class starts at 8:00 am and it’s already 7:30 am.

    12. We can solve this problem by ourselves, so you _______ help us.