-- Bob, you are absent-minded!--- Oh, I’m sorry I _______ attention to you, Miss Shute.
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.
—Have you finished the work? —Not yet. I _______ to do it just a moment ago.
______ is known to everybody, the moon travels round the earth every month.
When you are driving on this road, you have to limit your speed _____ 60 miles per hour.