It's polite to say "please"
to say ''please '' is more polite
it's p____ to say you are sorry 用polite还是politely
It's polite to say sorry when you knock into someone careles
it’s not polite to ask()
laugh at等于It's not polite to laugh at others.It's not polite
what's more/that's to say/in other words/please believe it o
It's not polite to talk to your mother______that
It 's polite to give seats to the
It's not polite to s______ to the old people.
it's hard to say
开头一句是it's time to say goodbye!最后一句是So please wait for me是哪首歌
It's ____ (polite) to smoke in public