Gun control is a subject ________Americans have argued for a long time,
What _________ will it make whether Mr. Black tells us the story early or not?
With his attention _________ on his book, he didn’t notice someone entering his room.
They have earned lots of money, so I______ believe that the business is a success.
Sales director is a position_______ communication ability is just as important as sales.
The statistical figures in that report are not_______. You should not refer to them.