1. They are waiting ________ the next train to come. A. for B. in C. to D. in 2. How long does it take __________from Ha Noi to Pleiku by plane? A. going B. go C. to going D. to go 3. We must always obey traffic rules for our ________. A. safe B. safely C. safety D. unsafely 4. Bus is the main public ________ in Viet Nam. A. vehicle B. travel C. tricycle D. transport 5. He forgot to ________ his seatbelt when he drove last night. A. give B. take C. bring D. fasten 6. “________ is it from your school to the playground?” - “It’s not very far.” A. How far B. How long C. How much D. How 7. You always wear a ________ to obey traffic rules when you ride a motorbike. A. mask B. hat C. helmet D. cap 8. One of the traffic problems in our big cities is that there are too many people _______ the roads. A. use B. using C. to use D. uses 9. “________ does she travel to Hoi An?” - “By plane.” A. How long B. How C. How far D. How much 10. We should walk ________ the street at the zebra crossing. A. on B. in C. through D. across