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Để điều chế đc 986ml khí hidro (đktc) cần dùng vừa đủ m gam kẽm tác dụng với 50g dung dịch axit clohidric a% a) tính giá trị của m,a b) tính nồng độ phần trăm của muối trong dd sau pư
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21. Nick would like to know something about the ______groups of Viet Nam when he visited the Museum of Ethnology. A. culture B. cultural C. cultured D. culturology 22. He is surprised…….that there are 54 ethnic groups in our country. A. to understand B. to study C. to know D. find 23. The Viet (or Kinh) have_____ number of people, accounting for about 86% of the population. A. large B. the large C. the largest D. larger 24. Nick was told that ethnic minority peoples have their own ways______ life and traditions. A. of B. on C. in D. at 25. The terraced fields of Sa Pa have entered______ the Top 11 most beautiful terraces in the world according to Touropia. A. in B. on C. at D. of 26. Gathering and hunting still play an important role in the _____.of the Laha. A. economic B. economy C. economical D. economize 27. _____.ethnic group has a large population, the Tay or the Ede? A. What B. Why C. Which D. Who 28. Ethnic peoples in the mountains have a simple way of farming. They use basic tools to______ the farm work. A. check B. work C. make D. do 29. Many ethnic minority students have to _____ a long way to their schools every day A. travel B. ride C. pass D. get 30. People_____ some far-away mountainous regions still keep their traditional way of life. A. on B. in C. of D. at 31.The Gong Festival is held ______________ in the Central Highlands. A. year B. yearly C. annual D. annually 32.____________ does Hoa Ban Festival take place? – In Lai Chau. A. What B. Where C. When D. How 33.It is typical of the cultural life of Thai people. A. some B. a C. the D. Æ 34. do the cattle provide for the nomads? – Dairy products, meat and clothing. A. What B. Where C. Why D. How 35. The crops on the weather. A. depend heavy B. depend heavily C. affect heavy D. affect heavily 36. Mai studies Maths a little bit . A. bad B. badly C. good D. smartly 37. During the festival, they fly many kites in different shapes and sizes. A. colour B. colourless C. colourful D. colouring 38. An old woman was the goats up the mountainside. A. riding B. taking C. herding D. running 39. is the festival celebrated? – Every year. A. When B. How often C. How D. What 40. There are no high buildings to block in our village. A. view B. a view C. some view D. the view 41. The Dao in the Sapa area is famous ________ its “love market.” A. for B. in C. with D. to 42. The Thai live ________ farming on their burnt-over land and wet-rice terraced fields. A. in B. on C. out D. up 43. The ________ house is a place where villagers gather for festivals and rituals. A. terraced B. splendid C. communal D. thatched 44. There were lots of interesting folk games, _______ Kenny stayed a little longer to join them. A. but B. because C. however D. so 45. ‘________ dress in red and black costume?’ ‘The Dao’ A. What B. Which C. Who D. When 46. What colour is ________ symbol of good luck for the Hoa? A. a B. an C. - D. some 47. ________ in terraced fields is the main economic activity of ethnic people in Sapa. A. Fishing B. Rice cultivation C. Hunting D. Gathering 48. ________ ethnic Khmer live in ________ Mekong Delta of Vietnam. A. The / - B. The / a C.A / the D. The / the 49. The Vietnam Museum of Ethnology ________ by the architect Ha Duc Linh, a memberof the Tay ethnic group. A. designed B. has designed C. was designed D. was designing 50. ‘I have just taken an elephant ride in Buon Don.’ ‘________ How interesting!’ A. Certainly. B. Really? C. Terrible. D. Exactly.

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