在下列各句的空白处填入一个最恰当的单词，使句子意思完整，语法正确。
1. Your glasses are very dirty. You'd better ______it with cloth.
2. In the USA, eating with hands is very ______.
3. Peter is a polite boy. He has good ______.
4. Peter suggested making a______, so everyone said "cheers".
5. In Japan it's impolite to______your chopsticks into your food.
6. You shouldn't ______ at your friend with your finger. It's rude.
7. —Would you like some more rice?
—No, thanks. I'm______.
8. I'm not good at eating with a______and______.
9. In France you're not supposed to put your hands in your______.
10. You should cover your mouth with a______when you sneeze.
