根据句意及首字母(汉语)提示，补全单词。

1.  You are supposed to have soup with a s        _ .

2.  I'm u       _  with the city because it is my first time to come here.

3.  Don't often throw about    _    (垃圾). It' impolite.

4.  The road is very        _ (拥挤) with people this time.

5.  People in Japan         _ (表现) differently at the dinner table.