A promising approach to reducing appetite which does not ________ taking any drugs, and is very safe, is to drink a certain amount of water before a meal.
—Have you ___________? —No. I had the wrong number.
Mary went to the box office at lunch time, but all the tickets ____out.
You have failed two tests. You’d better start working harder, ____ you won’t pass the course.
—Did you return Fred’s call? —I didn’t need to ____ I’ll see him tomorrow.
Many children, ______ parents are away working in big cities,are taken good care of in the village.