VI. Điền giới từ thích hợp vào chỗ trống 1. Where are there a lot _______ trucks and cars _________ the rush hour? 2. We must always obey traffic rules_______ our safety. 3. My hometown used__________ be a small village. 4. How was it from Ha Noi to Singapore__________ the past? 5. Lan used to go to school_________ foot or__________ car? 6. They should stop, look and listen________ a zebra crossing. 7. They should hold hands__________ an adult whenever they go out. 8. Mr Thanh didn't use to travel________ Korea. 9. They should stop at the kerb and look and listen ________ traffic. 10. It is 250 km _________ Ho Chi Minh City________ Da Nang.