Tet is a national and (1)..............festival in Vietnam. It is an occasion for every Vietnamese to be reunited to think (2)............their past activities and hope for good luck (3)..............the year to come. Before Tet all houses are white washed and (4)...............with yellow apricot flowers and colorful lanterns. Everybody is looking (5)f...........to a more favorable life. (6).............the New Years Eve, children are smartly dressed. They are hoping to (7)...............money put in small red envelopes as they are wishing longevity to their grandparents and parents. Wrong doings (8)...................be absolutely avoided on these days. 3. A. in B. at C. on D. when