26. This city is developing ______ in the region. A. as fast as B. faster than C. the fastest D. faster 27. You should take your hat _____ in the cinema. A. in B. off C. over D. down 28. You’re not a safe driver! You should drive ______. A. careful B. careless C. more careful D. more carefully 29. China is _____ far the most populated country in the world. A. as B. to C. so D. by 30. Karachi in Pakistan is the _____ largest city in the world in population. A. most B. two C. second D. three