Anh có thể tắt thuốc lá được không? Đậy là kiểu câu cầu khiến và hành động là anh ko được hút thuốc lá

A=(1+1/2)x(1+1/3)x(1+1/4)x(1+1/5)x(1+1/6)x(1+1/7) B=(1-1/4)x(1-1/9)x(1-1/16)x...x(1-1/225) C=(1+1/1.3).(1+1/2.4).(1+1/3.5)...(1+1/99.101) Mọi người giúp em với ạ. Em cảm ơn nhiều

1. The people in the café (not be) friendly when I was there yesterday. 2. I (live) in Danang city five years ago. 3. It (be) a great film in 2001. 4. Our teacher (tell) us to be quiet yesterday. 5. Susan (not know) about the exam and she did very badly. 6. I (buy) a ticket for the football match yesterday.

1/ Nêu những thành tựu kinh tế và văn hóa của Chăm- Pa ? Em hãy chỉ ra những điểm giống nhau và khác nhau về kinh tế và văn hóa của người Việt so với người Chăm ?

I. Choose the best options to complete the following sentences. 1. Have you ever __________ to London? A. be B. being C. been D.are 2. Choose the word which has a different sound in the part underlined. A. beach B. teacher C. hear D. clean 3. Do you know __________ food in Viet Nam? A. popular B. more popular C. most popular D. the most popular 4. Which _____ is Britain in?” - “Europe” A. country B. continent C. city D. area 5. Choose the word which has a different sound in the part underlined. A. tower B. show C. slow D. borrow 6. “I have been to Nha Trang __________. How about you?” A. one B. two C. second D. twice 7. “I‟d like to change the__________. Please give me the remote control.” A. programme B. view C. channel D. television 8. International School in Ho Chi Minh City is __________school in Viet Nam with high-tech facilities. A. the oldest B. the younger C. the most historic D. the most modem 9. People must be well-prepared________ they want to climb Mount Everest. A. before B. until C. although D. after 10. I think it is a very nice town __________ the weather is good and the people are friendly. A. if B. because C. so D. although II. Read the passage, and then choose the correct answers. San Francisco, a very hilly city, is in the San Francisco Bay. Although there are many modern skyscrapers in the city centre, houses in the suburbs are in the styles of the 19th century. The celebration of the Chinese New Year in San Francisco‟s Chinatown is one thing that you should not miss. You can find the best food from around the world: Brazilian, Indian, Japanese, Korean, Mexican, Russian, Thai, Chinese and much more. Don‟t forget to visit a jazz club or an outdoor coffee shop to enjoy good coffee and fresh air. You should visit Mission Dolores, an old church built by the Spanish in the 18th century. 11. Which of the following sentences is true about San Francisco? A. San Francisco is not a very hilly city. B. San Francisco is not in the San Francisco Bay. C. San Francisco has only old houses. D. San Francisco is a city with modern skyscrapers in the city centre. 12. What is the second paragraph about? A. nightlife B. scenery C. festivals D. architecture 13. Where can we have coffee and enjoy fresh air? A. Chinatown B. Old houses C. Churches D. Outdoor coffee shops 14. Which of the following sentences is NOT true about San Francisco? A. San Francisco is in the San Francisco Bay. B. You can only enjoy American and Chinese food in San Francisco. C. The celebration of the Chinese New Year in Sari Francisco‟s Chinatown is very interesting. D. You should enjoy jazz at a jazz club in San Francisco. III. Put the words in the correct order. 15. from/ vacation/ come/ Nha Trang/I/ just/ have/ a/ back/ in _______________________________________________________________________ 16. university/ Viet Nam/ the/ was/ Quoc Tu Giam/ first/ in _______________________________________________________________________ 17. world/ six/ in/ are/ continents/ There/ the _______________________________________________________________________ 18. England/ tower/ It/ famous/ in/ the/ is/ most _______________________________________________________________________ IV. Rewrite the following sentences, beginning as shown, so that the meaning stays the same. 19. Fansipan is higher than any other mountains in Indochina. - Fansipan is __________________________________________________________. 20. Let's plant more flowers in the garden. - What about__________________________________________________________? 21. New York is more exciting than any other cities in the world. - New York is __________________________________________________________. 22. Nha Trang attracts lots of tourists. It has clean and beautiful beaches. - Because _____________________________________________________________.

Lm giúp mk từ câu 47->61 nha Lm đúng + Đầy đủ=Vote 5*+cảm ơn +trl hay nhất

1)Giải thích tại sao duyên hải nam trung bộ có nghành đánh bắt hải sản phát triển nhất cả nước? . Trong đó nguyên nhân nào là quan trọng nhất 2)Giải thích tại sao đồng bằng sông cửu long có nghành nuôi trồng thủy hải sản phát triển nhất cả nước?

vì sao âm không truyền được trong chân không

a) A = x2 – 6x + 11 b) B = x2 – 20x + 101 c)C = x2 – 4xy + 5y2 + 10x – 22y + 28 GIÚP EM VỚI

GIÚP MÌNH VỚI !!!!!!! II. Bị động ở thì hiện tại tiếp diễn 1. Nam is watching a soccer match now. 2. Ba is cleaning the floor at the moment. 3. Lan isn’t reading books at the moment 4. What are you doing at the moment? 5. Is Tom making a toy now? III. Bị động ở thì tương lai đơn 1. She will open a new shop tomorrow. 2. Nam will buy a new bike next week. 3. They will not plant trees in the school tomorrow. 4. People won’t build a new bridge in this village. 5. What will Nam do tomorrow? IV.Bị động ở quá khứ đơn 1. They cancelled all the flights because of fog. 2. People advised us not to go out alone. 3. The girl did not give me the money. 4. Nobody told me the story. 5. When did they open that hospital? V. Bị động ở thì hiện tại hoàn thành 1. They have built this school for 2 years. 2. Phu Quang has composed a lot of songs about Ha Noi 3. He hasn’t finished his homework yet. 4. Nam has studied English for 5 years. 5. Have you watched this film before? VI.Bị động ở thì quá khứ tiếp diễn 1. Nam was watching an action film at 8.00 last night 2. Lan was reading a new comic at this time yesterday. 3. Hoa wasn’t cooking dinner last night. 4. What were you doing yesterday? … 5. Were they cleaning the room at 6 yesterday? VII. Bị động với động từ khuyết thiếu 1. Nam can fix the bike well. 2. . She is going to read a new novel tomorrow. 3. You must do your homework regularly. 4. He used to write poems when he was young. 5. No student can solve this problem.