ex 4)
You mustn't cross the road when the lights are red. You must be careful when you cross the road. You must walk on the pavement. You mustn't cycle on the pavement. You must fasten your seat belt. You mustn't drive more than 60 kph You must cycle in the cycle lane.ex 7)
You must wear a crush helmet when ride a motorbike You must cycle in the cycle lane You must drive at more than 60 kph You mustn't cross the road when the traffic light is red.
