It is (不填) bad manners to blow your nose at(不填)table.为什么是这样啊

It is (不填) bad manners to blow your nose at(不填)table.为什么是这样啊 it is bad manners to blow your nose（ ） ? generally it is ( ) bad manners to blow your nose at ( ) tab John,it's ____ bad manners to blow your nose at _____table When you are at the table,blowing your nose is bad.It is a g 为什么是it is good/bad manners to do sth. It is bad manners to point at others是什么意思 ___ is he whom you met at the station.为什么填That 不填It? It's bad manners to point at other people中为什么manners要加加”s“ it is time for getting up为什么介词要填for不填to Mind your table manners.It is __(polite) to talk with your m 为什么_____that your cap?“———”中要填“Is”不填“It's”?