It’s not polite to arrive to a dinner more than 76. ______ 15--20 minutes later. The host usually waits for all the guests 77. ______ to arrive before served the meal. If someone is late, the food may 78. ______ be spoiled (变味), and neither may the host’s spirits. If you 79. ______ have to late, call and tell them to start without you. 80. ______ It’s even bad to be early! The host will 81. ______ probably be ready. If you are early, drive or walk around the block a 82. ______ few times, and just sit in your car until the right time. Because 83. ______ the host invites guests to arrive and leave between certain times, 84. ______ so you can start at any time between the times he gives you. 85. ______