1. If they start saving money from now, they _______ afford to go to Ha Long Bay on holiday. A. should B. need C. can D. must 2. If I get the job offer today, I _______ accept it and start working on Monday. A. should B. might C. need D. must 3. If you want to enhance your well-being, you _______ stay up too late. A. needn't B. may not C. might not D. shouldn't 4. If you don't charge the battery, your device _______ function properly. A. mustn't B. can't C. shouldn't D. needn't 5. If you want to travel to Australia, you _______ have a valid passport. A. should B. may C. can D. must 6. If they want to graduate, they _______ complete all the required coursework. A. must B. should C. can D. might 7. If we don't book our tickets in advance, we _______ guarantee seats for the concert. A. shouldn't B. mustn't C. can't D. might not 8. If you want to have a productive meeting, you _______ carefully make a plan and set clear goals. A. can B. might C. must D. may 9. If .

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1. If they start saving money from now, they _______ afford to go to Ha Long Bay on holiday.
A. should B. need C. can D. must

2. If I get the job offer today, I _______ accept it and start working on Monday.
A. should B. might C. need D. must

3. If you want to enhance your well-being, you _______ stay up too late.
A. needn't B. may not C. might not D. shouldn't

4. If you don't charge the battery, your device _______ function properly.
A. mustn't B. can't C. shouldn't D. needn't

5. If you want to travel to Australia, you _______ have a valid passport.
A. should B. may C. can D. must

6. If they want to graduate, they _______ complete all the required coursework.
A. must B. should C. can D. might

7. If we don't book our tickets in advance, we _______ guarantee seats for the concert.
A. shouldn't B. mustn't C. can't D. might not

8. If you want to have a productive meeting, you _______ carefully make a plan and set clear goals.
A. can B. might C. must D. may

9. If the traffic is heavy, we _______ make it to the movie theater before the show starts.
A. can B. shouldn't C. might not D. mustn't

10. If you want to sleep well at night, you _______ drink too much caffeine after 3 p.m.
A. shouldn't B. may not C. can't D. won't

11. If you don't have a membership, you _______ access this exclusive club.
A. may not B. might not C. shouldn't D. can't

12. If you want to participate in the competition, they _______ violate any of these regulations.
A. shouldn't B. mustn't C. can't D. might not

13. If you want to avoid traffic, you _______ leave early in the morning or consider another route.
A. will B. need C. should D. must

14. If you want to succeed in their career, you _______ consider pursuing further education.
A. can B. should C. must D. mustn't

15. If the team works effectively, they _______ complete the project ahead of schedule.
A. can B. must C. can't D. mustn't