The price system is a complex network composed of the prices of all the products bought and sold in the economy as well as of a great number of services.
—You can’t finish the book in less than an hour, I suppose? —______.
Many manufacturers were accused of concentrating too heavily on cost reduction, often at the ______ of the quality of their products.
—I would like to speak to Mr. Martin.—There’s nobody here by that name.—Sorry, I ______ the wrong number.
Long skirts have been ______ for a long time in the West, but they are coming back this year.
—Will you please make yourself ______ to us, please?—I’m the honorary chairman of the committee.