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Must and musn't
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17. We ___ arrive to school on time.
mustn’t
must
Oops!
Okay!
13. You ___ do your homework before playing games.
mustn’t
must
Oops!
Okay!
19. We ___ take care of the environment.
mustn’t
must
Oops!
Okay!
15. Children ___ play with fire.
mustn’t
must
Oops!
Okay!
20. Students ___ cheat on exams.
must
mustn’t
Oops!
Okay!
6. Drivers ___ stop at a red light.
mustn’t
must
Oops!
Okay!
14. We ___ respect our parents.
must
mustn’t
Oops!
Okay!
7. Children ___ run across the street without looking.
must
mustn’t
Oops!
Okay!
2. Students ___ be quiet in the library.
mustn’t
must
Oops!
Okay!
3. You ___ wear a helmet when riding a bike.
must
mustn’t
Oops!
Okay!
18. You ___ touch the animals at the zoo.
must
mustn’t
Oops!
Okay!
9. We ___ litter in the park.
mustn’t
must
Oops!
Okay!
5. You ___ brush your teeth every day.
mustn’t
must
Oops!
Okay!
12. People ___ smoke inside the hospital.
must
mustn’t
Oops!
Okay!
10. You ___ listen to your teacher carefully.
must
mustn’t
Oops!
Okay!
8. You ___ eat vegetables to stay healthy.
must
mustn’t
Oops!
Okay!
11. You ___ be kind to your friends.
must
mustn’t
Oops!
Okay!
You ___ wash your hands before eating.
mustn’t
must
Oops!
Okay!
16. You ___ wear a seatbelt in the car.
mustn’t
must
Oops!
Okay!
4. We ___ talk loudly in class.
mustn’t
must
Oops!
Okay!
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