根据课文内容，补充下列句子
1. When you meet older new people, you should
________________________________.
2. When you meet younger new people, you can
________________________________ .
3. When the family isn’t at home and you answer the phone, you should
________________________________ .
4. When you wait for the bus, you should
________________________________ .
5.People like to work______, play ______ and talk ______ polite people.
6.When I get on the bus, I _______________________________.
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