Question 17: ethnic group has a larger population, the Tay or the Ede? C. Which A. Why B. When Question 18: Alaska is known for dogsled, the unusual method of A. transport B. experience C. habit Question 19: Some teenagers prefer doing leisure A time B. cakes Question 20: Organising the festivals is one way for us to A. maintain B. chase Question 21: Please keep silent; A. therefore Question 22: A. The/a C. activities B, otherwise Smiths went to there by (B. The / Ø word that needs correction. with their parents. C. catch the baby will wake up. C. so air. C. The / the C. No, I don't. Question 25: Hoa: "What a beautiful dress you have, Nga!" A. I am. Choose the underlined B. travel C. is Question 23: If more people travel by bicycle, there is less air pollution. A. pollution Choose the most suitable answer to complete the conversation below. Question 24: Minh: "Would you like to go for a walk?" Nam: “ B. Yes, please. A. Yes, I do. DI'd love to. Thanks. D. Who 66 D. trade our traditions. D. models D. break D. and D. The /an D. If Nga: B. I'm glad you like it, Hoa.