Choose the best answer to complete each of the following sentences
1.
If people ................ the rules, there are no more accidents.
2.
You should ................. right and left when you go across the roads.
3.
John often goes to school ............. with his friends.
4.
Public ............... in my town is good and cheap.
5.
Drivers have to ............... their seatbelt whenever they drive.
6.
All of us have to obey .................... strictly.
