10. They use the latest technology A. in order A. will not return 14. Tim A. Did - complete 15. Kate is a 11. My teeth hurt, A. but 12. When Mrs Brown arrived home after a hard day at work, the children A. slept B. have slept C. were sleeping 13. We our hometown since I was a child. C. haven't returned A. bored 16. He lives in a very they can increase their productivity. C. in order to B. so as to I made an appointment to see the dentist. B. because C. so B. is not going to return his project yet? B. Will - complete C. Has - completed friend because she often keeps silent when we ask for her opinion. C. bore B. boring village in Hue. B. picturely A. picture 17. John wanted to know what time C. picturesque D. in order that D. or D. sleep D. didn't return D. Have - complete D. boredom D. picturesquely