Một chiếc xe tải đi từ điểm A đến điểm B, quãng đường dài 191km. Sau khi xe tải xuất phát được 1 giờ, một chiếc xe khách bắt đầu đi từ B về A và sau 1 giờ 48 phút thì hai xe gặp nhau. Tính vận tốc mỗi xe biết rằng mỗi giờ xe khách đi nhanh hơn xe tải 9 km. giups mình với đang cần gấp ạ

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English 7 Choose the best answer Name:................................ Class:.............. 1. My mother used to ............ clothes by hand. 1 điểm A) wash B) washes C) washed 2. How ............... does it take you to go to school? 1 điểm A) old B) far C) long 3. Cycling around the lake in the morning is good for your ................ 1 điểm A) healthy B) health C) unhealthy 4. You must wear a helmet when you ................ a motorbike. 1 điểm A) fly B) ride C) drive 5. Big cities often suffer .................. traffic jams. 1 điểm A) at B) from C) to 6. Did you use to play marbles when you .............. in the countryside? 1 điểm A) live B) are living C) lived 7. Traffic accidents can be prevented if people .............. the rules. 1 điểm A) believe B) obey C) remember 8. We should use public ................... to save energy. 1 điểm A) transport B) journey C) travel 9. It is necessary for children to learn about road .................. 1 điểm A) safe B) safely C) safety 10. You must fasten your seatbelt when you ................. a car. 1 điểm A) drive B) ride C) fly 11. Hoa used to ................. hide-and-seek when she was a child. 1 điểm A) plays B) play C) played 12. Did she use to walk to school when she ................. at Primary school? 1 điểm A) studied B) study C) studies 13. It is not very .................. from my house to Helio center. 1 điểm A) old B) long C) far 14. He often causes accidents because he drives ................. 1 điểm A) care B) carefully C) carelessly 15. “No cycling” is the .................... sign. 1 điểm A) prohibition B) warning C) information 16. “Cycle lane’ is the ............................. sign. 1 điểm A) prohibition B) warning C) information 17. "School ahead" is the....................... sign. 1 điểm A) prohibition B) warning C) information 18. He often went hunting when he was in Africa. (used) 1 điểm A) He used to went hunting when he was in Africa. B) He used to go hunting when he was in Africa. C) He used to goes hunting when he was in Africa. 19. The distance from my house to my school is about 30 km. (It) 1 điểm A) It is 30 km from my house to my school. B) It is about 30 km from my house to my school. C) It is about 30 km from your house to your school. 20. They used to go on holiday together. (-) 1 điểm A) They didn't used to go on holiday together. B) They don't use to go on holiday together. C) They didn't use to go on holiday together.