III. Choose the correct answer. 11. The words jeans come from a kind of material that was made. Europe. A. of B. in C. by D. at 12. Mrs.Huong was tired, she helped her son with his homework. A. So B. Although C. Because 13. He went out last night with his friends, ? A. did he B. was he 14. It was too hot yesterday.. C. didn't he D. If D. wasn't he I turned on the air conditioner. A. because 15. If she rich, she would travel around the world. B. although B. is C. so C. has been A. would be 16. I've lost my key. I've_ it everywhere but I can't find it. A. looked B. looked after C. looked for 17. I wish I. a bigger house. A. have B. has C. have had 18. I want everybody to listen to Hoa's presentation. A. care B. careful C. careless D. if D. were D. looked at D. had D. carefully 19. The man A. who bike was stolen was very angry B. whose C. whom 20. "Thank you very much h^ prime prime .-^ prime prime \ A. Nothing overline C . B. You're welcome Not all D. which D. Are you worried?