16. Its very nice _______ you to say so. A. of                            B. on                           C. in                            D. at 17. Passover is celebrated in Israel and by all _______ people. A. Jewish                    B. English                   C. Vietnamese            D. Japanese 18.  Auld Lang Syne is a song _______ is sung on New Year's Eve .           A. which                     B. whom         C. whom                     D. when 19. Peter, _______, can compose many pieces of music, sings very well. A. who                        B. which                      C. whom                     D. whose 20_______he likes chocolate, he tries not to eat it. A. Though                   B. As                           C. Since­                      D. Despite 21. Do you know the man _______ you met yesterday? A. whom                     B. who                         C. which                      D. whose 22. The men and animals . _______ you saw on TV were from China. A. that                        B. whom                     C. which                      D. who 23. Tet is a festival _______ occurs in late January or earl, February. A. which                     B. who                         C. whom                     D. when 24.They often decorate their houses _______ many beautiful flowers. A. with                        B. in                            C. for                           D. from 25.Tet is the holiday _______ celebrated in Lunar New Year. A. which is                  B. what is                    C. which was D. what was 26.Lunar New Year is the festival _______ popular in China, too. A. which was              B. which are                C. in which                 D. which is 27.Christmas Day, 25th _______December is the biggest day of the holiday in many countries. A. in                            B. on                           C. of                            D. at 28.Celebrations start properly on 24th of December, Christmas Eve, _______ there have been several weeks of preparation before hand. A. because                  B. although                 C. so                            D. so that 29.Christmas is a difficult time of year _______ people without families. A. for                          B. with                        C. in                            D. to 30.Christmas is a family _______ and many of the customs center on children. A. celebrate                B. celebrating C. to celebrate             D. celebration