The end of December and the beginning of January are the busiest times for the Japanese post offices. (1) _________ Japanese have a custom of sending New Year’s Day postcards to their friends and relatives, (2) __________ to the Western custom of sending Christmas cards. Their original purpose was to give your faraway friends and relatives tidings of yourself and your immediate family. (3) __________, this custom existed for people to tell others whom they did not often meet that they were alive and well. Japanese people send these postcards so that they arrive (4) ___________ 1st January. The post office guarantees (5) ______ the greeting postcards on 1st January if they are posted within a time limit. To deliver these cards on time, the post office usually hires students part-time to help deliver the letters. It is customary not to send these postcards when one has had a death in the family during the year. In this case, a family member sends a simple postcard called mochi hagaki (mourning postcards) to inform friends and relatives they should send New Year’s cards, out of respect for the deceased.