Fill in the blanks with “must/mustn’t -- can/can’t”

1) I have some work to do tomorrow. I ------ go bed now.

2) You -------- drink cold water. It is cold.

3) I -------- help you now. I’m very busy.

4) You -------- wear your school uniform.

5) My little brother -------- swim very well.

6) We -------- make noise in the library.

7) You -------- go to the dentist if you have toothache.

8) I -------- drive this car. I have a driving license.

9) We-------- be careful while driving.

10) You -------- wash your hands before the meals.

11) I -------- play tennis. I don’t have a tennis racket.

12) You -------- help your mother. She needs help.

13) You -------- smoke here. It is forbidden.

Fill in the gaps with can, can't, must and mustn't .

1. Please give me my glasses. I see anything.

2. You hurry or you will be late.

3. Juan lived in America when he was small. He speak English very well.

4. Teachers say we talk during lessons.

5. you close the door, please?

6. you leave or can you stay a little longer?

7. You smoke in the classroom.

8. Mario is very talented. He play three instruments.

9. Vanessa is three months old. She walk yet.

10. I do this homework. I don't understand anything.