Excuse me ,where is Mr.Brown's office sorry I don't know I__

Excuse me ,where is Mr.Brown's office sorry I don't know I__ --Excuse me,where's the post office --Sorry,I don't know.--_ Excause me,where is Mr Broun's sffice --Sorry,I don't know.I A:excuse+me,where is the hospitl?B:I'm sorry,I don't know.I’ - Excuse me.Where is the zoo?-Sorry,I don’t know.Ask that po Excuse me. Where is the zoo? -Sorry, I don’t know. Ask that -"Excuse me,is this Mr.Brown's office?" 英语8.-Excuse me, is this Mr Brown’s office? --Could you tell me where Mr.Zhang is?--Sorry,I don't know. Excuse me,Is this Mr Greeen's office?I'm sorry,but Mr Green —Excuse me. Where is Mr Green’s office? Where's Mike?-----,I don't know.A Excuse B Sorry C