•Choose the best word to fill each gap from A, B, C or D.
•For each Question 21-30, mark one letter (A, B, C or D) on your Answer Sheet.
Money serves primarily as a medium of exchange --the function performed by money in facilitating exchange and eliminating the need for a barter system. Rather than follow the complicated process of (21) wheat directly for gasoline or clothing (the barter system), a farmer can sell the wheat and use the (22) from the sale to make other purchases.
Money also (23) as a unit of account-the common denominator for measuring the (24) of all products and services. A new car is worth, say, $9,500, a certain cut of beef $4, and a 40-yard-line ticket to a football (25) $ 20. Using money as a common denominator aids in comparing widely different products and services.
Finally, money acts as a temporary (26) . of value--a way of keeping accumulated wealth until it is needed to make new (27) . Wealth can also be held in the form. of stocks and bonds, real estate, antiques, works of art, houses, precious gems, or any other kind of valuable goods. The (28) of storing value in goods other than money is that they often produce additional income in the form. of dividends, interest payments, rent, or increases in value. For example, paintings by Renoir, Monet, and Van Gogh have greatly (29) in value over the past 20 years. But money offers one substantial advantage as a store of value. It is highly liquid. An asset is said to be liquid if it can be obtained and (30) quickly and easily.
(21)
A．buying
B．trading
C．purchasing
D．getting
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