9. When cycling on the roads, remember: _____________ first. (safe) 10. The policeman _____________ the car to stop with a flashlight. (sign) 11. Signs with red circles are mostly __________ - that means you can’t do something. (prohibit) 12. This _____________ sign indicates that traffic lights are ahead. (warn) 13. Most road accidents happen because the motorists drive _____________. (care) 14. It is _____________ to drive on the left in Vietnam. (legal) 15. Everyone should _____________ obey traffic rules for their own safety. (strict)