Directions: Read the dialogs and choose the expression that BEST completes each missing part.
Dialog 1
 
Situation  : At the airport
Mr. X : Hi.
Attendant : Good morning. _______1________.
Mr. X : Certainly.  Here you are.
Attendant : _______2________?
Mr. X : A window seat, please.
Attendant : Do you have any firearms, hazardous materials, or liquids in your bag?
Mr. X : No.
Attendant : Oh, I’m afraid_______3________You’ll   have to pay the excess baggage charge.
Mr. X : All right.
Attendant : Thank you.  Here’s your boarding card.
Mr. X : Do you know which gate the plane is leaving from?
Attendant : I’m sorry to say that the boarding gate hasn’t been announced yet, but _______4________.
Mr. X : Where’s the security check-in area?
Attendant : It’s just over there. _______5________.
Mr. X : Thanks.