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nhimram001
2 năm trước
Đề : Đốt cháy hoàn toàn 4,84 gam hỗn hợp 2 hiđrocacbon cùng dãy đồng đẳng cần vừa đủ 77,28 lít không khí (đktc) thu được 6,48 gam H2O. Xác định CTPT của ankin? A. C2H2; C3H4. B. C3H4; C4H6. C. C3H6; C4H8. D. C4H8; C5H10. Làm giúp mjk với đang gấp ạ! Mjk cảm ơn trc ạ!
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Ex1.Complete the passage with the words from the box. score without sport each play game positions boring Basketball is a pretty cheap (1)…………… to play in terms of equipment. So as long as you have shoes and a ball, you can play. You can play with 1 hoop or 2, but it is way more fun to have a full-court to (2).......... on and several friends to do it with. Of course, you can have knee braces, expensive shoes, and some fancy jerseys if you want, but you can play (3) …………… them if you want. Basketball is a (4) …………… of 5-on-5. There are 5 different (5) ……………: point guard, shooting guard, center, small forward, and power forward. Unlike some other sports, all players can (6) …………… points, and there is NO goalkeeper. There isn’t a (7) ............... position to play! Basketball has 4 quarters. For pro games, quarters are 15 minutes. Teams switch directions of play after (8) …………… quarter. Ex2. Complete the sentences with suitable prepositions. 1. I do a lot of sport ………… my free time. 2. He sometimes listens to music ………… his own. 3. I’m not very keen ………… physical activity. 4. I spend a lot of money ………… sports shoes and jerseys. 5. Football is more popular ………… boys than girls. 6. I am addicted ………… video games. 7. ………… 1985, ………… the age of 17, Pele won his first World Cup. 8. My younger brother is a huge fan ………… Messi. He has collected lots of posters of this well-known player. 9. Pele is regarded ………… one of the best football players of all time. 10. It’s good ………… your health to do exercise regularly.

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