III . Choose the best answer. 9 ................... to do homework today? A. Have you B. Do you have C. Must you​ D. You must 10.She knows that he worked really ................... this semester. A. good B. hardly​ C. better D. hard 11. Karachi is ........................... city in the world population. A.the two largest B. the two larger C. the second largest D. the second larger 12. When I turned up, the town hall was already ___________ of teenagers. A. crowded B. packed C. full D. jammed 13. He tried to ………………up with the development of technology . A .go B.come C. have D. keep 14. I wish my parents could put themselves in my……….. A. situation B. shoes C. feelings D. heart 15. After I found all the information I needed, I ___________ the computer. A. turned off B. switched on C. looked for D. put off 16. I couldn't concentrate on my lesson .............................. I was very tense. A. although B. because C. so that D. why 17. This city has one of the most ______ underground rail networks in the world. A. efficient B. fashionable C. cosmopolitan D. fascinated 18. This laptop is much more user- friendly, but it costs ________the other one. A. so much as B. as many as C. twice as much as D. twice as many 19. Today's cities are ___________ than cities in previous times. A. lots larger B. much larger C. as large D. the largest 20. ................ my cousin is young, she is one of the most skillful artisan in Bat Trang village. A. Although B. In order to C. Because D. Despite