Ex 1 điền must/mustn’t
1 Students at high school ….use the phone in class.
2 look at the speed limit. You ….drive at more than 40 km /hour
3 You ….walk on the grass in the park
4 you …be late for class if you don’t want to be in punished.
5 Passengers … fasten their seat belts while on the car
6 You …….speak loudly in hospital
1. Students at high school mustn’t use the phone in class.
2. Look at the speed limit. You mustn’t drive at more than 40 km /hour
3. You mustn’t walk on the grass in the park
4. You mustn’t be late for class if you don’t want to be in punished.
5. Passengers must fasten their seat belts while on the car
6. You mustn’t speak loudly in hospital
1. mustn’t
2. mustn’t
3. mustn’t
4. mustn’t
5. must
6. mustn’t
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