The computer was one of the greatest______ in the 20th century.
Sorry to disturb you, ______ could I speak to you for a few minutes?
I wasn’t interested in the film at _____ first, but after ____ time I began to like it.
—Tom, you the lazy bone! You left the dishes unwashed again!—_______? Mom isn’t at home and she can’t hear you.
The famous writer’s play, ________ in one of my books, was published in 1963.
_______ at the airport, he telephoned his wife and told her what he would do when he got home.