Giai phương trình sau: `sin^2x+sin^2x .tan^2x=3` `sin^2x+sin^2(3x)=cos^2x+cos^2(3x)` ` \sqrt{3}sinx+cosx=1/cosx`

Nx tranh (tranh tui) Sđeef: vẽ đậu mầm tức giận Nl:mún bt tui giận cái j thì vô ctl mới nhất nhá

III. FIND AND CORRECT ONE MISTAKE 1. I never went to Hanoi before, so I am very excited about this trip. 2. Workers used to wearing jeans because jean cloth was very strong and was not easy to wear out. 3. Although we live far from each other, we still keep on touch by sending emails. 4. It is impressive to know that the Pharaohs have ruled Egypt for thousands of years. 5. Those trees water everyday. I wonder why they don’t look so green. 5.When I was a kid, I was used to travel to school by myself. 7. Sarah has worked for a small café shop for about three years before receiving this current occupation. 9. The black clouds are covering the whole sky. It will rain. 10. Can you tell me when was the telephone invented.

Viết đoạn văn trình bày cảm nhận của em về vẻ đẹp của người lính trong tác phẩm “bài thơ tiểu đội xe không kính” qua đoạn thơ sau: “Không có kính, ừ thì có bụi Bụi phun tóc trắng như người già Chưa cần rửa, phì phèo châm điếu thuốc Nhìn nhau mặt lấm cười ha ha. Không có kính, ừ thì ướt áo Mưa tuôn mưa xối như ngoài trời Chưa cần thay, lái trăm cây số nữa Mưa ngừng, gió lùa mau khô thôi.”

B. Combine the sentences using these relative pronouns below. You will need to use some of them more than once. that / when / where / which / who / whose 5. Those houses are not very convenient. They cost a lot of money. *Be careful! This is non-defining relative clause!

2. He left the office very late so he ........ be home for dinner ; 3. There are a lot of clouds in the sky so it .... rain later ; 4. She didn't pass her driving test so she ...... be happy

Nước biển và Đại Dương có mấy sự vận động ? A.1 B.2 C.3 D.4

11. Where are the photos which John took them at the Christmas party? A B C D 12. She is the girl about who I talked with you the day before yesterday. A. who B. with C. the girl D. the day before 13. A tsunami is a very large wave whose causes a lot of damage when it hits the land. A. damage B. whose C. it hits D. A tsunami 14. There was a lake which the local people went fishing in the winter in my hometown. A. was B. fishing C. which D. in 15. She is the girl about that I talked to you yesterday. A. the girl B that C to D.yesterday 16. This bed, where he used to rest on, is made of wood A. is madeB. Used to C . where D. Of 17. Thomas Raven is a physicist whom book on time and space has been translated into a dozen languages. A. is B. on time C. space D. whom 18. This is theonly placewhich we can obtain scientific information. A B C D 19. Where are the photos which John took them at the Christmas party? A. at the B. the C. took them D. which 20. You can buy the pasta from that Italian shop. It has just opened in the high street. A. You can buy the pasta from that Italian shop which has just opened in the high street. B. You can buy the pasta from that Italian shop who has just opened in the high street. C. You can buy the pasta from that Italian shop where has just opened in the high street. D. You can buy the pasta from that Italian shop whom has just opened in the high street. 21. I need the book whose I lent you last week A. the B. whose C. need D. lent you 22. The man whom was brought to the police station confessed to the crime. A. whom B. brought to C. station D.the 23. My home country, that is the most peaceful place in the world, will always be in my mind. A. My homeland B. that C. most peaceful D. in 24. She is the girl about that I talked to you yesterday. A. the girl B that C to D.yesterday 25. Everybody who have a fever must go home immediately A. immediately B. who C. must D. have 26. Do you want to go to a restaurant where we first met? A. a B. Where C. do D. to go 27. What is the name of the girl who bicycle was stolen? A. is B. stolen C. who D. the 28. Mr. Brown, that teaches me English, is coming today. A. teaches me B. that C. is coming D. today 29. Do you know Jim's brother who house is in your neighbourhood? A B C D 30. Po Nagar Kalan is the main tower, that is one of the tallest Cham structures. A. that B. is C. the tallest D. structures 31. The pollution who they are talking about is getting worse. A. about B. are talking C. who

Bài 1: Một đội công nhân được dao sửa một quãng đường. Ngày thứ nhất đội sửa được 3/17 quãng đường . Ngày thứ hai sửa được gấp đôi ngay thứ nhất.Hỏi đội công nhân còn phải sửa nốt bao nhiêu phần quãng đường nữa thì xong. Bài 2: trung bình cộng của hai số là số chẵn lớn nhất có bốn chữ số khác nhau, một trong hai số đó là số tròn chục bé nhất có bốn chữ số khác nhau. Hãy tìm số kia

GIÚP MK CẦN GẤP ( rate5sao vs ctrlhn) Câu 1: trong các chất sau: KHCO3, Mg(OH)2, (NH4)2CO3, Al2(SO4)3, Zn(OH)2 số chất vừa tác dụng được với dung dịch NaOH vừa tác dụng với dung dịch HCl là A. 1 B. 3 C. 2 D. 4 Câu 2: Phenolphtalein bắt đầu chuyển sang màu hồng trong dung dịch có pH bao nhiêu? A. pH > 8,3 B. pH > 9 C. pH > 7 D. pH > 8,0 Câu 3: Muối nào dưới đây là muối trung hòa? A. Na2HPO3 B. NaHCO3 C. Ca(H2PO4)2 D. KHS Câu 4: Dung dịch chất nào sau đây không dẫn được điện? A. Ca(OH)2 trong nước B. HCl trong benzen C. CH3COONa trong nước D. HCl trong nước