III.  Choose the best answer a, b, c or d to complete the sentence. 1.   Vietnamese people usually return to their families _________ Tet.       a. in                             b. on                            c. for                            d. during 2.   When the clock strikes midnight, colorful fireworks light _________ the sky.       a. in                             b. up                            c.on                             d. over 3.   You shouldn’t_________ things on the first day of Tet.       a. make                        b. hang                        c. break                        d. cook 4.   Tet is the _________ time of the year.           a. busy                         b. busier                       c. busiest                     d. most busy 5.   Tet is the biggest and most important_________ in Vietnam.       a. festival                     b. decoration               c. occasion                   d. tradition 6.   Tet is coming. We _________ clean and decorate our house.       a. should                      b. shouldn’t                 c. mustn’t                    d. are 7.   I always _________ my grandparents a long life and good health.       a. celebrate                  b. wish                         c. make                        d. bring 8.   The _________ is the first person to enter your house in the New Year.                                                  a. relative                     b. first cousin              c. first footer               d. rooster 9.   ‘_________ do Vietnamese people prepare for Tet?’‘They decorate their houses and cook special food.’       a. What                        b.Where                       c.How                         d.How often 10. ‘In which country do people throw water at one another?’‘_________’       a. Scotland                  b.Thailand                   c.The USA                  d.   Denmark