Giải hệ phương trình: $\left \{ {{\large{x^2+2y^2+xy^2=2+x-2x^2}} \atop {\large{4y^2=(\sqrt{y^2+1}+1)(y^2-x^3+3x-2)}}} \right.$

Complete each of the following sentences with the correct form of the word in the bracket. 1. Daniel is very interested in history and (archaeologist)......................,and often visits historic sites. 2. They are doing some (archaeology)..........excavations at the site 3. She wanted to be an (archaeology)................in her youth. 4. He escaped from (real).......................by going to the cinema every afternoon 5. The special effects were so (real)..................that all the viewers couldn't take their eyes off the screen. 6. They finally came to a mutually (benefit)..................agreement. 7. Most skin cancers are completely (cure)....................but some can be fatal. 8. We were informed sha has a rare,(cure)....................disease 9. The (discover)............................that bees can communicate with each other is (fascinate)................

II.Choose the word or phrase that best completes each unfinished sentence below. 1. Presents in colored paper and put under the Christmas tree. A.are wrapped B. are wrap C. are wraped D. are wrapping 2. Tom likes . He spends lots of hours watching the birds. A. bird-watching B. bird-watch C. watch-bird D. watching-bird 3. Greg me that he liked rock music. A. said to B. told to C. asked D. explained 4. Sally is quite keen the idea. A. in B. on C. of D. for 5. Milk cows and goats. A. belongs to B. comes from C. is made of D. is made from 6. is a religious song that people sing at Christmas. A. Carol B. Poem C. Christmas card D. Patron saint 7. Galileo said that the earth round. A. was B. were C. has been D. was being 8. They recently returned Paris from London. A. to B. for C. towards D. Ø 9. Could you talk ? A. more quiet B. quieter C. quietlier D. more quietly 10. I thanked myclassmate helping me with my homework. A. for B. about C. of D. Ø 11. Halloween is the night of 31st October, when peopleonce believed that ghosts. A. can see B. can be seen C. could see D. could be seen 12. She me she didn’t know what to do. A. said B. told C. asked D. suggested 13. Anita is fond playing the piano. A.in B. on C.of D. for 14. The fire is made matches or lighters. It is made in the traditional way. A. with B.without C. of D. by 15. She seems very today. A. sleepy B. sleepily C. happily D. seriously 16. Ten countries participated in the discussions. A.took part in B. held C. went to D. arranged 17. The journey from the airport to the university about half an hour. A.spends B.takes C. want D. passes 18. is a saint regarded as protecting a particular person or place. A.Patron saint B. Blessed saint C. Holy saint D.Fairygodmother 19. The festival was held in the communal house yard. A. rice-cook B.rice-cooker C. rice-cooking D. rice-cooked 20. I that I didn’t know what to do. A. said B. told C. asked D. suggested Unit 6 FOLK TALES II.Choose the best answer A, B, C or D. 1. My dad doesn’t mind .................... my mom from work every day. A.pick up B.picked up C.picking up D. picks up 2. Using computers too much may have harmful effects .................... your mindsand bodies. A.on B.to C.with D. onto 3. I love the people in my village. They are so .................... and hospitable. A. friendly B.vast C.slow D. inconvenient 4. The .................... people in the village are very friendly. A. ethnic minority B. majorities C.ethnic minorities D. ethnic cultures 5. Can you speak English .................... My English is not good. A. slow B.more slowly C. quickly D. more quickly 6. Viet Nam is .................... multicultural country with 54 ethnic groups. A. a B.an C.the D. A and C 7. Which ethnic groups have the largest population in Viet Nam? A. Kinh B.Muong C.Tay D. Hmong 8. The Lao are one of .................... many Thai- speaking peoples. A. the B. a C. an D. A and C

giả sử có 10 tế bào của cơ thể ruồi giấm đực tiến hành nguyên phân liên tiếp 5 lần. Tất cả các tế bào con tiếp tục giảm phân để tạo giao tử . Hãy xác định a) Số NST mà môi trường nội bào cung cấp cho nguyên phân và giảm phân c) Số lượng giao tử được tạo ra

liên hệ địa phương về những hành vi phạm pháp về kinh doanh

b)Tìm ƯCLN(4n+1;6n+1) với mọi n là số tự nhiên nhanh nha mọi người

Vẽ cho mk con trâu đi trước cái cày theo sau ạ :)) vẽ đẹp có màu với lại là có chữ nx :)) Nếu đc chèn lun cho mk cánh đồng lúa vào với ạ

Question 2:Read the passage and choose the best answer (A, B, C or D). Write your answers on the answer sheet (10 points). Have you ever followed instructions for knitting something or have you read a piece of music? If you have, you have behaved in a similar way(1)... computer. A computer obeys a program to carry out (2). .. a knitting pattern is expressed in numbers and piece of music in lines and dots, so a computer program is (3)............ in the form of programming language. Like the English language (or any a particular task. Just other language), there are of grammar, and a program must be correct in every way. (4).. . ere are hundreds of programming language, but only (5).. . are well- uyeun and widely used. The most popular language which is used in ofices(6). ....Cobol. This language is used for printing payrolls and keeping records of goods. Engineers and scientists use Fortran (7).... ...carry out neither of these two programs is very popular with calculations. (8).... neople working on home computers. Basis is the most popular language for home computers, chiefly (9).. .it is easy to learn and use. (10). . new simple program was devised. Such a program ought to be not only easy to use but also completely reliable. these languages are useful for many purposes, it is time that a C. D. from

Những người mà nhân vật cháu cho rằng là đáng vẽ hơn là ai? Những nhân vật ấy có vai trò gì trong truyện

Viết lá thư bằng tiếng Anh phàn nàn về dịch vụ, nhân viên bưu điện