excuse me sir

excuse me sir Excuse me.sir --- Excuse me, sir? .—Excuse me ,sir,_______ Excuse me sir,where is Room 301? Excuse me,sir? Y____? 英语首字母填空 Excuse me,Sir． 啥意思 Excuse me,sir.这里的sir需要大写么? Excuse me,sir．Could you tell me ________? Excuse me,sir.Could you tell me______?选什么,为什么? Excuse me sir Smoking is not allowed here Excuse me, sir may I have your order?