--- Isn't that Ann's husband over there?--- No, it ______ be him---I'm sure he doesn't wear glasses.
Being able to afford ______ drink would be ______ comfort in those tough times.
——May I put my luggage on the seat beside you, sir?——____.
There was something wrong with the network, or the e-mail____ earlier.
I’d rather have a room of my own, however small it is, than _____one with others.
_______ she was invited to the ball made her very happy.