2,cho tam giác abc có góc c=60 độ và trung tuyến ae=bf.cmr tam giác abc đều

I/ hope/ the future/ he/ teach/ me/ how/ do/ eggshell carving. -..............................................................................................................

Hỗn hợp khí gồm CO, CO2, SO2 ( hỗn hợp A) a, Cho A đi qua dd NaOH thu được khí B1 và dd B2 b, Cho A đi qua dd H2S c, Cho A đi qua dd NaOH không dư d, Trộn A với O2 dư. Đốt nóng ----> Khí X. Hòa tan X bằng H2SO4 90% ----> Khí Y và chất lỏng Z. Viết các phương trình phản ứng

38. The United Kingdom is divided … 4 parts: England, Scotland, Wales and Northern Ireland. A. between B. among C. into D. for 39. herbivores are animals which … A. eat meat B. eat plants C. swim very fast D. live on the bottom 40. The life … of sperm whale can be up to seventy years. A. period B. length C. distance D. span 41. Wildlife all over the world is in … A. risk B. danger C. threat D. death 42. Brazil was the ………….. of the 2014 World Cup. The 20th World Cup was held there. A. trophy B. host nation C. continent D. tournament 43. …………is a chemical used for killing weeds. A. Pesticide B. Herbicide C. Fertilizer D. Antibiotic 44. These birds ………….to North Africa in winter. A. settle B. go C. relocate D. migrate 45. Water pollution is more and more serious due to the tests of nuclear weapons in the seas and oceans. A. circulation B. environment C. elimination D. contamination 46. The farmer enrich the soil with …………. . A. fertilizers B. herbicides C. insecticides D. gases 47. The cattle drank from a river polluted with toxic chemical. A. waste B. colorless C. odorless D. poisonous 48. _________ is traditional of music of a country. A. jazz B. folk music C. pop music D. classical music 49. Actors are those who appear in front of a camera and take part of characters in a film. A. persons in a film B. cinematographers C. scriptwriters D. directors 50. There’s a love story in it, and it’s very funny. I suppose you’d call it a …………… A. horror film B. detective film C. romantic comedy D. thriller

cho tứ giác ABCD( hình vẽ ) CMR: dt EFGH=1/9 dt ABCD

CMR nếu 2(x+y)=5(y+z)=3(z+x) thì $\frac{x-y}{4}$= $\frac{y-z}{5}$

31. …………… they tried their best, they were not successful in getting the driving test. A. Although B. Because C. In spite of D. As a result 32. Are you the kind of person …….? A. whom shy around people B. who are shy around people C. who’s shy around people D. whose is shy around people 33. …….. the fact that she is still young, she is appointed to a very high position in the company. A. Despite B. Although C. In spite D. Both A and C 34. The man I saw at the bank ………… A. who was my English teacher last year B. is my English teacher last year C. my English teacher last year D. was my English teacher last year 35. The chemistry book ………………….. was a little expensive. A. that I bought it B. I bought that C. what I bought D. I bought 36. …………… his age, Mr. Benson runs four miles before breakfast. A. Because B. Although C. Despite D. Because of 37. ……………………. the rough sea, the ferry couldn’t sail. A. Because of B. In spite of C. Because D.Although

Huong, Linh, Thao, and Trang are the students of a school. 3 of them stay far away from school and 1 lives near it . 2 study in class IX, 1 in class X and 1 in class XI. The subjects are Math, Music, Physical Science and Home Science. One of them is good in all the four subjects while another is weak in all the subjects. Trang stays far away from the school and is good at Music only while Thao stays close to the school and is weak in Music only. Neither of these two nor Huong studies in class XI. One who is good in all the subjects studies in class X Name the girl who is good at all the subjects. A. Trang B. Linh C. Huong D. Thao

would you care...something to eat ?

I....................(broke) my watch, so I don't know what time it is How long......................(be) in this school?