21. There used to be fewer people and __________ on the roads.
A. roofs B. helmets C. helicopters D. vehicles
22. Do you know the __________ in the UK is to keep to the left?
A. traffic light B. traffic rule C. traffic jam D. speed limit
23. It is dangerous to ride a motorbike without a __________
A. helmet B. triangle C. tricycle D. circle
24. In Hanoi, during rush hour, some road users ride their motorbikes on the __________
A. driving licence B. lane C. pavement D. seat belt
25. Traffic is terrible during the __________ when everyone is in a hurry to get to work or come back home.
A. traffic light B. road sign C. traffic rule D. rush hour
26. The __________ for motorcycles is 40 km/h in towns and 60 km/h outside urban areas.
A. speed limit B. driving licence C. traffic rule D. traffic light
27. You must __________ the traffic rules in order to avoid accidents.
A. park B. obey C. reverse D. warn
28. It takes us more than three hours to drive across those __________ roads.
A. wide B. safely C. right-handed D. bumpy
Cảm ơn :>>