— Professor Smith, some students want to have a talk with you. ___ they wait here or outside?— Show them in now, please.
My client cannot come but I appear on ______.
I’m sorry it’s ______ my power to make a final decision on the project.
You have responsibility ______ clearing up the room after class.
It was so urgent that we have to finish it in ______.
I am surprised to see a _______ chair in the room.