When I got to his home, he ________ for an hour.
Knowing office rules—whether _____ or not—is critical, especially for young job seekers.
For a long time they walked without saying _____ word. John was the first to break _____ silence.
Readers have been making good comments on the book, but _____ actual sales, it is still far from satisfactory.
—Which is the computer you want to _____?—The one over there.
Don’t start reading a book _____ you find that it’s one you can read with ease and understanding.