John, look at the time. ____ you play the piano at such a late hour?
Poetry written from the ______ of the urban youth tends to reveal their anxiety over a lack of sense of belonging.
_____ basic first-aid techniques will help you respond quickly to emergencies.
Mary worked here as a ____ secretary and ended up getting a full-time job with the company.
As the world’s population continues to grow, the ___of food becomes more and more of a concern.
—Pardon?Who will come?—________.