Topic: Modal verbs in first conditional sentence ...

3. If you don't follow the rules, you may not/should not join the club.

5. She should/can improve her vocabulary if she reads regularly.

1. If she completes her homework, she can/must use the computer.

6. If you study hard, you must/might get good grades.

10. She may not/should not catch the bus if she doesn't wake up early.

4. If Lily wants to get better, she must/might take her medicine.

8. If Mark wants to improve his writing, he should/might read more books.

7. If he doesn't finish his house chores, he can not/may not go out with friends.

2. If they want to save money, they may/should stop eating out so often.

9. If they want to lose weight, they can/must eat a balanced diet.