____________ often happens at 7-8 am and 5-7pm every day in big city.
traffic jams
Tuân thủ luật GT : __________traffic rules / laws
obey
What kind of transportation is this?
fire engine
Where shoud people cross the street? At the ____________
zebra crossing
People who walk on the street. A, pedestrians B. passengers
A
You must __________your seatbelt when you are driving a car
fasten
What kind of transportation is this?
a helicopter.
