1. Drivers have to__________ their seatbelt whenever they drive.
A. put B. tie C. fasten D. put on
-> Có "fasten their seatbelt: : thắt dây an toàn
2. We should wait for the traffic lights__________ before we cross the street.
A. turn green B. to turn green C. turn yellow D. to turn yellow
-> Có "to turn green" : đèn chuyển sang màu xanh
3. All of us have to obey__________ strictly.
A. traffic rules B. traffic C. traffic jam D. regular
-> Có "traffic rules" : luật giao thông