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19. Ba Be Lake in Bac Kan is______natural lake in Viet Nam.

        A. the largest             B. the large                    C.    largest                 D.more large

20. Many people say that Nile is______river in the world.

      A. the deepest              B. deeper                     C. the longest            D. longer

21. I think Nam is one of______tour guides in this company.

      A. the best                    B. the better C. best     D. better

44. I know him _______than you do.

      A. better                      B. more well                C. good                       D. the best

16. Hoa doesn’t have _______ friends in Ha Noi.

      A. much                           B. lots                                C. a lot                        D. any

17. How __________is it from your house to school?

      A. often                           B. many                             C. far                           D. distance