Credit cards are plastic cards issued by a bank or other financial institutions allowing theholder to buy goods and service without using cash. Many American don’t like to carry much cash. For them the cards are convenient and safe to use.

　　Credit cards are gaining popularity, even for buying small items. They are accepted almost everywhere, though not at fast food restaurants.

　　Credit cards allow you to purchase things that you may not currently have the money to buy. When you use a credit card, the credit card company that issued the credit card pays the store. Later, a bill will be mailed to you by your credit card company for the amount you purchased. At that time, you can either pay the bill in full, or only pay a minimum amount, and wait till later to finish paying. If you wait till later, you will owe the credit card company interest on the amount that you do not pay.

　　1.D 2.C 3.B 4.C 5.A