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Giải thích các bước giải:
Có `a//b=>\hat{CAB}=\hat{ABD}=90^o` `\hat{ACD}+\hat{CDB}=180^o=>\hat{ACD}=180^o-\hat{CDB}=120^o` `\hat{CDB}+\hat{CDb}=180^o=>\hat{CDb}=180^o-\hat{CDB}=180^o`#GBình2k7#Muoi
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PRACTICE UNIT 1.3- E8 Ngày 16/9 I.Complete the following sentences with the words in the box. (In some cases , more than one answer can be relevant) Good relaxingsatisfied Exciting boringstaying indoorhang out Playing football walkingeating outwatching TVdoing DIY 1.Everyone does leisure activities in their free time and they help them feel ………………….. 2.You can do …………. Activities such as yoga , or ………………….. Ones such as mountain biking or skateboarding . 3.Hobbies such as making crafts or collecting things are …………………. 4.You can surf the internet but some people say this is …………………. 5.You can spend time with family and friends or become a volunteer for the community . This will make you feel ………. 6.To many American teenagers the shopping mall is one of the top destinations to see friends or …………………. 7.People in Singapore …………………. . They can find food courts almost everywhere in this city state. 8.…………………. is the most popular individual outdoor activity in the UK. 9.These days many children prefer ……………………. and …………….………. to playing outside. 10.When we do team sports such as …………………. , you develop team spirit too. II.GIVE THE CORRECT FORMS OF THESE VERBS. 1. Do you fancy …………………. a new laptop ? (buy) 2. My father enjoys ………………… on weekend . ( garden ) 3. I love ………………… out with my friends . ( eat) 4. I want ………………… with my friends after school . ( hang out ) 5. They detest ………………… so early in the morning. ( get up) 6. We must ………………… our bike when the lights are red. ( stop) 7. We woud like ………………… you to our dinner. ( invite) 8. My dad doesn’t mind ………………… my mom from work everyday. ( pick up) 9. I adore ………………… and ………………… good food. ( make/eat) 10. We will ………………… a test tomorrow. ( have) 11. My borther can ………………… many kinds of musical instruments.(play) III.Choose the correct option A,B,C,D to complete the sentences. 11. The University of Indochina . . . . . in Ha Noi in 1906. A. builtB. was builtC. has builtD. has been built 12. Last year, we participated in . . . . . funds for street children. A. raisingB. makingC. gatheringD. taking 13. The doctor says my father will become ill . . . . . he stops smoking. A. untilB. whenC. unlessD. if 14. We . . . . . to school two years ago. Now I go to school on foot. A. used to cycleB. cycledC. was cyclingD. went 15. . . . . . the silly story, many people enjoyed the film. A. AlthoughB. Inspite ofC. HoweverD. Nevertheless 16. A friend of . . . . . is coming to stay with me next month. A. meB. myC. ID. mine 17. Traffic accidents can be prevented if people . . . . . the rules. A. rememberB. obeyC. go afterD. take care of 18. I’m sure you’ll find the film . . . . . A. amuseB. amusingC. amusedD. amusement 19. Vanilla Sky . . . . . Tom Cruise, Peslelope Cruz and Cameron Diaz. A. actsB. playsC. starsD. does 20. Give a . . . . . before you turn left or right. A. handB. turnC. soundD. signal 21. On Thanhksgiving, families and friends . . . . . to have a feast. A. meetB. arriveC. gatherD. appear 22. The end of the film was so . . . . . A. movedB. movingC. moveD. moveable 23. Look at the photo! You’re . . . . . a horse! A. drivingB. flyingC. ridingD. lying 24. At 7:00 tomorrow, you . . . . . to school. A. cycleB. will cycleC. will be cyclingD. will be cycled 25. In the green future, vehicles will be powered by . . . . . A. solar energyB. coalC. gasD. fuel IV.Rewrite the sentences so that it stays the same meaning. 27.The distance from Ho Chi Minh city to Phu Quoc Island is about 300km. It is ………………………………………………………… 28. Road users should obey traffic rules strictly. Traffic rules ………………………………………………… 29. Be careful or you’ll hurt yourself. If you are …………………………………………………. 30. People water the flowers every day. The flowers ………………………………………………… 31. I prefer watching TV to listening to music. I like ……………………………………………………….. 32. I spend two hours doing my homework. It takes………………………………………………………..
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