Excuse me sir Smoking is not allowed hereExcuse me ,sir.Smoking is not allowed hereOh sorry ,I ()A.have known B.don't know C.didn't known D.hadn't known为什么无能用B啊

Excuse me.sir excuse me sir Excuse me,Sir． 啥意思 Excuse me,sir.这里的sir需要大写么? Excuse me,sir,ls this your school?怎样回答 Excuse me,sir? Y____? 英语首字母填空如题 Excuse me, sir may I have your order?fanyi Excuse me sir?I can`s find my heart Excuse me,sir.Can you give me some information?sir是插入语吗?请解释清楚为什么? 中文翻译“Excuse me ,sir .Can you tell me the way to the post office Excuse me,sir.Is there a men,s room in the supermarket?麻烦翻译一下 A:Excuse me,sir.B:_______?A.How B.Yes C.OK D.Who Excuse me,sir.Do you know the way____the post office填什么? I don't know.I'll ask.Excuse me,sir怎么读 Excuse me ,sir?Yes?I’m lost.I can't find my hotel Don't worry Excuse me?回答Excuse me,sir?-- _______A all right B Not at all C Good D That's right应该选什么? Excuse me excuse me