According to the related information about greetings and introductions, answer the following questions. 1. What is the purpose of the greetings when people meet and make an acquaintance? 2. What do people greet each other with in English? 3. What questions can be asked when we greet Americans or British? 4. In English, what address forms are used for different people, at different times and in different situations? 5. When introducing a friend to your boss or teacher, how do you start your conversation? 6. When you want others to know you, what may you say? 7. According to Paragraph 3 and 4, what are the different conversation manners in different culture?