"Excuse me,is this Mr.Robinson's office?"

"Excuse me,is this Mr.Robinson's office?" -"Excuse me,is this Mr.Brown's office?" 英语8.-Excuse me, is this Mr Brown’s office? Excuse me,Is this Mr Greeen's office?I'm sorry,but Mr Green —Excuse me. Where is Mr Green’s office? Excuse me ,where is Mr.Brown's office sorry I don't know I__ Excuse me,is Mr.Green in the office? —Excuse me, is Mr Green in the office? 2.--Is this Mr Smith's office? 单选--Is this Mr.White`s office,Mary? the excuse office where me post is Excuse me,who's is this eraser?改错