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.