1. postcard   2. e-mail     3. uncle         4. Tian'anmen Square   5. Palace Museum 

6. letter        7. bottom    8. right          9. corner                    10. left 

11. aunt       12. sister    13. Tuesday   14. Sunday                  15. panda 

16. rabbit     17. top       18. Monday    19. dog                       20. mum

通信                                                                                                                    

动物                                                                                                                                               

方位                                                                                                                    

星期                                                                                                                    

人物                                                                                                                    

名胜