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Unit 10 You’re supposed to shake hands. The Third Period Section A( Grammar Focus4c) What are you supposed to do when you meet someone for the first time? You39。re supposed to shake hands. You39。re not supposed to kiss. When were you supposed to arrive? I was supposed to arrive at 7:00. Am I supposed to wear jeans? No,you39。re expected to wear a suit and tie. Is it impolite to keep others waiting? Yes,it39。s very impolite to keep others waiting. Is it important to be on time? Yes, it39。s important to be on time. Grammar Focus you go abroad,it______________bring your passport. class,students______________clean the chalk off the blackboard. you visit the northern coast of Norway during the winter season,it______________pack warm clothes. there are people in the meeting room,you ______________knock before e