3. I __ have to___ wake up early tomorrow . I want to watch the sunrise.

4. I _must___ wake up early tomorrow . I have a meeting early in the morning .

5. I __have to__ wear a black dress because I want to look good .

6. I __must__wear a black dress because that is the requirement of my company .

7. I __have to__ go home now because it’s too late .

8. I ___must__ go home now because I have a lot to do .

9. I __have to__go to see my friend because I miss her .

10. I ___must__ go to see my classmate because we work on the same project .

11. You __must__ wear a tie in the company. It‘s one of their rules .

12. I ___must__ go abroad next week. My boss wants me to sign a contract with our foreign customers.

13. I __have to_ work harder . I want to be successful .

14. This room is mess, I __have to__ find time to clean it !

15. You really __must__ stop driving so fast or you’ll have an accident!