Fill in each numbered blank with one suitable word or phrase.

Tet is a national and (1) ______ festival in Viet Nam. It is occasion for every Vietnamese to be reunited to think (2) _____ their past activities and hope for good luck in the year to come. Before Tet all houses are white washed and (3)____ with yellow apricot flowers and colorful lanterns. Everybody is looking forward to a more favorable life. On the New Year's Eve, children are smartly dressed. They are hoping to (4) _____ money put in small red envelopes as they are wishing longevity (5) ______ their grandparents and parents.

 It is occasion for every Vietnamese to be reunited to think (2) _____ their past activities and hope for good luck in the year to come.

A. to 

B. after 

C. for 

D. about