1. The studens.........must..... do their homework at home.
2. The "No smoking" sign says you........must not...smoke
3. Children.....can not....... play soccer in the classroom
4. The traffic lights are changing red. We.......can not......go.
5. The "Parking" sign says you......must...park you car here.
6. The"stop" sign says you......must....stop here (ngọc hải sai câu này)
7. I..can....swim.I go swimming every week
8. The car goes every fast. We.....must.....be careful
9. You.....can not....play soccer in the street
10. My brother.......can not...drive a car.He is svery young
11. There is "No packing" here.You .....mustn't ....park your car here. (sai câu này nữa)
12. This sign says " Stop".We.....must ..stop.
13. Ourr roads are dangerous places.We ....must not.....play there.
14. We ...can.......not go fast
15. My father.....can.......not drive a car

1. The studens.........must............. do their homework at home.
2. The "No smoking" sign says you..............must not...............smoke
3. Children.................can not................... play soccer in the classroom
4. The traffic lights are changing red. We...................can not..................go.
5. The "Parking" sign says you................must.................park you car here.
6. The"stop" sign says you...............must not...............stop here
7. I.................can..............swim.I go swimming every week

1, must
2 mustn'n
3 can not
4. can not
5. must
6. must
7. can
8..must
9. can not
10. can not
11.mustn't
12.must
13. must not
14.can
15. can

1. The studens.........must..... do their homework at home.
2. The "No smoking" sign says you........must not...smoke
3. Children.....can not....... play soccer in the classroom
4. The traffic lights are changing red. We.......can not......go.
5. The "Parking" sign says you......must...park you car here.
6. The"stop" sign says you......must not....stop here
7. I..can....swim.I go swimming every week