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Trong Không Gian Oxyz , khoảng cách giữa mặt phẳng (a): 2x+4y+4z+1=0 và (b): x+2y+2z+2=0 bằng: A.3/2 B.1/3 C.1/2 D.1
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Tìm lỗi sai và giải thích giúp mình với nha! Mình muốn hiểu tại sao lại sai ở đó! 1. 'There were'(A) so 'a lot of'(B) people trying to leave 'the burning'(C) building that the police had a 'great deal'(D) of trouble controlling them. 2. I 'still'(A) have to 'finish'(B) my project, 'what'(C) keeps me 'very busy'(D). 3. 'The more'(A) healthy he 'is'(B), the 'most easy'(C) his life 'becomes'(D). 4. 'Despite'(A) its 'smaller size'(B), 'the'(C) Indian Ocean is 'as deep'(D) the Atlantic Ocean. 5. The 'number'(A) of 'visitors'(B) to the 'exhibition'(C) dropped 'considerable'(D) in the second week. 6. When too 'many'(A) firms enter 'competitive'(B) markets, 'their share'(C) of profits 'will fell'(D). 7. The term "middle class" 'describes'(A) people 'between'(B) the upper and 'the low'(C) social 'classes'(D). 8. Nowadays 'there are'(A) 'more'(B) and more places 'when'(C) we 'cannot'(D) use our phone. 9. 'Almost'(A) American Indian cultures 'have been'(B) 'agricultural societies'(C) 'since'(D) 2000 BC. 10. The 'children's'(A) television program 'called'(B) "Sesame Streat" was 'seeing'(C) in 84 countries 'in'(D) 1989. 11. He decided 'doing'(A) the job 'himself'(B) as the 'cost'(C) of repairs to 'his car'(D) was so high. 12. Since 'erecting'(A) in 1886, 'the'(B) Statue of Liberty 'has served'(C) as a 'symbol of'(D) freedom. 13. 'When'(A) I arrived 'at her house'(B), I found that she 'has been'(C) out with her new friend 'without'(D) leaving me a note. 14. The governor, with 'his'(A) wife and children, 'are'(B) at home 'watching'(C) the election 'returns'(D) on television. 15. We 'solved'(A) the problem by 'using'(B) a computer rather than 'to do'(C) it all 'by hand'(D). 16. 'Ice skating'(A) and to go skiing 'are'(B) popular 'winter sports'(C) in 'the'(D) Northern United States. 17. The surgeon examined 'the'(A) patient 'quickly'(B), 'and'(C) then 'the operation was begun'(D). 18. World hunger 'it is'(A) one of the 'most'(B) urgent 'problems'(C) that 'we face'(D) today. 19. Now that 'the'(A) stress of examinations 'are'(B) over, we 'can go'(C) somewhere 'for our holiday'(D). 20. The park 'keeper'(A) told US 'not walk'(B) on 'the grass'(C) or we 'would be'(D) fined. 21. Tom didn't 'drive'(A) a car since he 'had'(B) an 'accident'(C) two 'years ago'(D).

8. Read the passage and answer the question: My first summer holiday I woke up early at 10:00 am with the ringtone of Tran Duc Bo. I was almost shocked and almost dead. After waking up, I looked in the mirror and saw a pig in front of me. I eat breakfast and lunch. After eating, I divided all the dishes after eating and bought a new plate. After eating, I went to sleep and thought about my life. I then sleep until 4 pm. I woke up and played Free fire like young buffalo. I defecated 3 times. After that, I went out with my boyfriend but I didn't have a boyfriend, so I stayed at home plowing the views for Idol. Then I slept until tomorrow morning and started the day again. 1. What ringtone do I hear for the morning? =>................................................................................. 2. What is my reaction after listening to music? =>................................................................................ 3. How do I behave like a young buffalo? =>................................................................................ 4. What did I do without a boyfriend? =>................................................................................ 5. Dịch bài đọc ( không sử dụng ứng dụng dịch )

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