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have to drive on the right side of the road? 3. mustn’t 表示做某事是錯(cuò)誤的或違法的,沒有選擇的余地 ,意為“禁止??”。 . You mustn’t park in spaces for disabled people. You don’t have to have a driver’s license to ride a bicycle. Read the following sentences. You mustn’t ride on the sidewalk. You have to know how to stop safely! You must always remember to lock your bike. You have to wear lightcolored clothes. You must give way to pedestrians. You have to have lights on your bike. You mustn’t give rides to other people. You must check the brakes and the tires. You have to obey all traffic signs and rules. You mustn’t do tricks on your bike. You must wear a helmet. (二)祈使句表示禁止。 . Give me a hand, please. Don’t open the door. Read and plete the leaflet with the headings from the box. A. Rules for motorcyclists B. Rules for cyclist ] C. Rules for pedestrians D. Rules for drivers Always wear a seat belt. Follow all traffic signs