chỉ ra các từ ghép đẳng lập hay từ ghép chính phụ : giúp đỡ , yêu quý ,cà chua ,cải bắp ,rau riếp, bầu trời ,trong xanh ,ngắm nhìn, cay đắng ,máy hơi nước ,làng mạc,suy nghĩ ,lâu đời ,nhà máy ,nhà ăn,trài lưới ,cây cả,ẩm ướt ,đắm đuối, ăn mặc ,ăn ở

Giúp em từ câu d đến câu e được ko mọi người

21. Anne says that she reads about half____________ hour a day, at least. A. a B. an C. the D. Ø 22. Different people like specific types of books, and some people just like____________ literature in general. A. a B. an C. the D. Ø 23. Have you ever read_________ "Oliver Twist", _________ interesting novel written by Charles Dickens? A. the/ the B. Ø/ an C. Ø/ Ø D. an/ the 24. I like____________ books better than ____________ films. A. Ø/ Ø B. the/ the C. Ø/ the D. the/ Ø 25. How many players are there in ___________ water polo team? A. a B. an C. the D. Ø 26. ___________ swimming is considered to be good way of losing weight. A. Ø/ a B. The/ a C.A/ the D. The/ the 27. Water polo is played in___________ pool 1.8 meters deep. A. a B. an C. the D. Ø 28. The goalie tried to catch___________ ball, but he failed. A. a B. an C. the D. Ø 29. Internationally, 189 countries have signed___________ accord agreeing to create Biodiversity Action Plans to protect endangered and other threatened species. A. a B. an C. the D. Ø 30. Known worldwide by its panda logo, World Wildlife Fund (WWF) is dedicated to protecting ______ world's wildlife and the rich biological diversity that we all need to survive. A. a B. an C. the D. Ø 31. Species become extinct or endangered for___________ number of reasons, but___________ primary cause is the destruction of habitat by human activities. A. Ø/ a B. a/ the C. the/ a D. Ø/ Ø 32. Since ___________ 1600s, worldwide overexploitation of animals for___________ food and other products has caused numerous species to become extinct or endangered. A. the/ a B. the/ Ø C. Ø/ the D. the/ the 33. By 2015, it will be widely accepted that schools and pre-schools have___________ extremely important role to play in future of our world. A. an/ a B. an/ the C. the/ the D. Ø/ Ø 34. On___________ Internet and with cable television we can select information from___________ wide variety of sources. A. the/ a B. an/ the C. the/ Ø D. Ø/ the 35. There is one___________ thing we can be sure___________ energy will be more challenging and more important in the future. A. the/ Ø B. the/ an C. a/ the D. Ø/ Ø 36. ____________ Sahara of ____________ Africa is the world's largest desert. A. Ø/ the B. The/ Ø C. A/ an D. The/ an 37. ____________ sand covers only about 20 percent of Earth's deserts. A. A B. An C. The D. Ø 38. Peter enjoys____________ science fictions, ____________ type of book based on imagined scientific discoveries in the future. A. Ø/ Ø B. the/ Ø C. Ø/ a D. the/ the 39. Different people never read a book in____________ same way. A. a B. an C. the D. Ø 40. Different activities should be carried out to raise_________ awareness of our people about ecotourism. A. a B. an C. the D. 0

Giải x^3+2x^2y+xy^2-4x giúp mình với

Viết Calli: Đừng tiếc nuối những thứ đã qua, hãy hi vọng nhưng điều phía trước. Có tâm giúp mình ạ.

thiết kế hệ thống câu hỏi để hướng dẫn học sinh giải bài toán theo phương pháp chia tỉ lệ: "Một đội thi công xây dựng nhà ở có 3 loại thợ gồm 111 người. Trong đó số thợ nề 9/2 số thợ sơn, số thợ sơn bằng 3/2 số thợ điện. Hỏi có bao nhiêu thợ nề, thợ sơn, thợ điện?"

..............................................................

vì sao hiến pháp quy định công dân có quyền khiếu nại tố cáo ? thuc hiện tốt quyền này có ý nghĩa nhu thế nào

Giúp mik câu 14 với ạ mình cần gấp

1. It is estimated that about 640 women remain illiterate in________ world, mostly in developing countries. A. a B. an C. the D.  2. Did you read___________ book I lent you___________ last week. A. a/ the B. the/ the C. the/  D. /  3. I went by___________ train to___________ West of England. A. / a B. / the C. /  D. the/ the 4. We visited Canada and___________ United States. A. an B. a C.  D. the 5. I fell in___________ love with him because of his kind nature. A. a B. the C.  D. an 6. _____ schooling is compulsory in Australia between___________ ages of six and seventeen. A. The/  B. A/ an C. / the D. The/ an 7. In___________ most social situations, ___________ informality is appreciated. A. /  B. the / an C. a / the D. the/ a 8. _______ love is________ very strong feeling of affection towards someone who you are romantically attracted to. A. The/ the B. The/  C. A/ the D. / a 9. London is___________ of England. A. a capital B. capital C. one capital D. the capital 10. Do you know exactly___________ number of Siberian tigers in China? A. a B. an C. the D.  11. It is estimated that only 1,000 pandas remain in___________ wild. A. a B. an C. the D.  12. ___________ friend in need is___________ friend indeed. A. The/ the B. A/ a C. /  D. / the 13. What is your___________ biggest dream in___________ your life? A. /  B. the/ a C. the/ the D. a/ the 14. Did you have___________ good time at the party last night? A. a B. an C. the D.  15. The local authorities are conducting___________ campaign to help___________ disabled. A. a/ the B. the/  C. /  D. / the 16. We should do something immediately to conserve ___________ nature A. a B. an C. the D. Ø 17. Everyone knows what is happening to ___________ earth but we just do not know how to stop it. A. a B. an C. the D. Ø 18. Where can people play ___________ water polo? A. a B. an C. the D. Ø 19. No __________ water polo player except _________ goalie can hold the ball with both hands. A. a/ the B. the/ Ø C. the/ a D. Ø/ the 20. As for me, I consider reading ____________ important part of ____________ life. A. an/ Ø B. the/ a C. Ø/ the D. an/ a