—John, why are you so tired?—I ______ pingpong with Jimmy.
The traveler didn’t know________which direction to go.
As _____rule, apples are sold by_______weight and eggs by _______dozen.
—No wonder you caught a cold. You _______out last night without a coat. —I know how silly I was.
Smallpox, a kind of disease, has now died ________.
The discovery of new evidence led to ________.