单选题You have probably seen ads (广告) in newspaper or on television for mail-order companies. Perhaps a catalogue (商品目录) has been sent to you. Why do people buy things they have not seen in person? Some people believe that things can be bought more cheaply by mail. Another good thing about buying by mail is that it is easier and more enjoyable to sit at home and work through a catalogue than to shop around the stores. With a catalogue from a large company, you have your own shop window for almost everything you want to buy. Buying from a catalogue is so easy. It saves the shopper"s time and trouble. Sometimes, it saves the shopper"s money, too. But people often buy more than they can really afford(付得起) or need, because many things look so good to them. They can probably pay a certain part of the full price—a down payment. Then they pay a certain amount of money every month until the goods is paid for in full. But by then they often find what they have bought are of no use at all.

单选题______ the long walk the old man seemed rather tired.

单选题That boss _____ his workers work more than 12 hours a day.

单选题When you are speaking ______.

单选题

单选题What does the man mean?

单选题John's girlfriend loved her dog very much.

单选题______ ago, there were few people in the world.

单选题The supermarket is only five miles ______.

单选题You should check your answers when you finish the paper.

单选题What nationality is the woman?

单选题Joy was sad because his pet cat______.

单选题When did she find she is seriously ill?

单选题— Are you Gao Hui? — ______

单选题Betty was walking in the street then in order ____________.

单选题Mr. Dodds didn't believe that he was the policeman's uncle.