根据句意及单词首字母提示填写单词。

1. If you see someone breaking the r     of etiquette,we may want to mention this to them politely.    

2. I don't know the way to the sports club.Can I f     you？

3. At last, they found a s     to the problem .

4. She had a bad cold and c     all the time.

5. China, Japan and Thailand are all A     countries.

公正公平原则是指，证券投资分析师必须在收费标准上一视同仁，不得以资金量多少或交易频率等方面的区别歧视某些投资者或委托机构，在提供咨询意见的深度和准确性上应持不同标准。