（   ）18. —Where is the football match ?    —It’s ____ the stadium.

                            A. to                    B. at                     C. on                    D. of

       （   ）19. ______ the world, we have a lot of friends.

                            A. To                    B. Around             C. With                 D. On

（   ）20. Would you like ____ water ?

                        A. some                 B. any                  C. a                      D. an

       （   ）21. How many people are there in your _____ ?      

                 A. family                  B. house               C. home                D. roomliuxuepaper.com