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Căn cứ vào bảng tuần hoàn các nguyên tố hóa học hãy cho biết: a) Tính chất hóa học của Mg và P b) So sánh TCHH của Mg và P với các nguyên tố lân cận trong chu kỳ, trong nhóm nguyên tố
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Choose the best answer to complete each of the following sentences. 1. Drivers have to__________ their seatbelt whenever they drive. A. put B. tie C. fasten D. put on 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 3. All of us have to obey__________ strictly. A. traffic rules B. traffic C. traffic jam D. regular 4. Cyclists and motorists have to wear a__________ when they ride a motorbike. A. hard hat B. cap C. mask D. helmet 5. He forgot to give a__________ before he turned left and got a ticket. A. signal B. sign C. light D. hand 6. __________does it take you to get to Ho Chi Minh City by plane? - About 2 hours. A. How far B. How much C. How long D. How many 7. There__________ a bus station in the city centre, but it has been moved to the suburbs. A. used to be B. used to have C. use to have D. were 8. I__________ marbles when I was young, but now I didn’t. A. play B. used to play C. have played D. didn’t use to play 9. “__________ is it from your house to the nearest bus stop?” - “About 50 meters’ A. How far B. How long C. How often D. How much 10. We should__________ the street at the zebra crossing. A. walk B. walk on C. walk through D. walk across 11. John used to go to school __________. A. with bicycle B. by foot C. in car D. by bus 12. Public __________ in my town is good and cheap. A. transport B. tour C. journey D. travel 13. _______ is not very far from here to the city center. A. That B. This C. It D. There 14. When there is a traffic jam, it__________ me a very long time to go home. A. costs B. takes C. lasts D. spends 15. Mai’s dad usually drives her to school__________ her school is very far from her house. A. but B. though C. because D. or 16. Yesterday Hoa and Lan__________ round West Lake. It took them an hour. A. cycle B. cycles C. cycling D. cycled 17. Minh used to__________ his homework late in the evening. A. does B. do C. doing D. did 18. If people __________ the rules, there are no more accidents. A. follow B. take care of C. obey D. remember 19. You should__________ right and left when you go across the roads. A. see B. look C. be D. take 20. Hurry up or we can’t__________ the last bus home. A. keep B. follow C. go D. catch 21. There used to be fewer people and __________ on the roads. A. roofs B. helmets C. helicopters D. vehicles 22. Do you know the __________ in the UK is to keep to the left? A. traffic light B. traffic rule C. traffic jam D. speed limit 23. It is dangerous to ride a motorbike without a __________ A. helmet B. triangle C. tricycle D. circle 24. In Hanoi, during rush hour, some road users ride their motorbikes on the __________ A. driving licence B. lane C. pavement D. seat belt 25. Traffic is terrible during the __________ when everyone is in a hurry to get to work or come back home. A. traffic light B. road sign C. traffic rule D. rush hour 26. The __________ for motorcycles is 40 km/h in towns and 60 km/h outside urban areas. A. speed limit B. driving licence C. traffic rule D. traffic light 27. You must __________ the traffic rules in order to avoid accidents. A. park B. obey C. reverse D. warn 28. It takes us more than three hours to drive across those __________ roads. A. wide B. safely C. right-handed D. bumpy 29. You need a driving licence to __________ A. drive a car B. ride a bike C. get on the bus D. get off the train 30. The large supermarkets in Vietnam often let you __________ free. A. park B. obey C. warn D. find

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