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chauphanqn2020
2 năm trước
Có 4 lọ đựng một trong những chất lỏng sau: nước cất, cồn, nước đường, nước muối. Bằng phương pháp hoá học hãy nêu cách để nhận biết chất lỏng nào đựng trong mỗi lọ. (đừng dùng vị giác nha ) viết PTHH ( nếu có)
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12 Mark the letter A, B, C or D to indicate the correct answer to each of the following questions. Ha Noi is ______ the most populated city in Viet Nam. A: much more B: by far C: a lot D: a little bit 26 Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits blank (24). Most of the greatest cities in the world are (23) ______ near oceans, rivers, or lakes. New York City, Rio de Janeiro, and Buenos Aires are on the Atlantic Ocean, (24) ______ San Francisco, Tokyo, and Santiago are on the Pacific Ocean. Singapore is located on an island in the South China Sea and Venice is on an island in the Adriatic Sea. London is (25) ______ the Thames River. Paris is on the Seine River. Cairo is on the Nile River and Budapest is on the Danube River. Chicago, Cleveland, and Toronto are on the Great Lakes: Chicago on Lake Michigan, Cleveland on Lake Erie, and Toronto on Lake Ontario. (26) ______ their location, most of these cities have famous (27) ______ associated with water. New York City has the Statue of Liberty Island. San Francisco has the Golden Gate Bridge and Venice has the Grand Canal, to name only a few. làm câu 24 A: but B: although C: while D: as 31 Mark letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to the original sentence in each of the following questions. John used to write home once a week when he was abroad. A: John doesn’t write home once a week any longer. B: John enjoyed writing home every week when he was abroad. C: John never forgot to write a weekly letter home when he was abroad. D: When John was abroad he remembered to write home every week.

Chuyển thành câu bị động. 1. Miss Blake is one of the ____________ from Friends of the Earth.(represent) 2. We should ___________ plastic bags instead of throwing them away. (use) 3. Attractive ____________ can help to sell products. (package) 4. Reduce means not buying products which are ____________ . (overpackage) 5. Share your _____________ story with our readers! (recycle) 6. Farmers in our village often  ____________ their field with compost. (fertilizer) 7. Are you interested in ___________ the environment? (protect) 8. There are many ____________ made from recycled things. (produce) 9. Waste paper can be ____________ after being recycling. (use) 10. We can protect the environment by ____________ air pollution. (reduction) Chuyển từ câu chủ động sang bị động 1. They clean these rooms every morning.  These rooms 2. People play football all over the world. → Football 3. The mailman collects the letters every 6 am. - >The letters 4. A. G. Bell invented the telephone in 1876. - >The telephone 5. He wrote that book last year. - >That book 6. Mr. Brown took the children to the zoo last Sunday. - >The children 7. People use milk to make butter and cheese. - > Milk 8. They plant rice in those fields - > Rice 9. They make paper from wood. - > Paper 10. We sent these postcards to our friends by air. - >These postcards Giúp với mn 🙏🙏

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