It began with a red paper clip and ended with a house. Kyle MacDonald, a 26-year-old Canadian, ...

It began with a red paper clip and ended with a house. Kyle MacDonald, a 26-year-old Canadian, ...

小题4:A 小题5:B 小题6:D

小题4:根据第二段“now more and more young people around the world are starting their own trading activities. They set up websites where people can trade things they don’t usually use with other people.”知答案应选A：People can trade things they do not usually use on the Internet.在互联网上人们可以交易他们不常使用的物品。 小题5:根据文章最后一段知答案应选B：In fact, everyone in the trade activities gets things that are useful to them.交易活动为什么受年轻人欢迎？因为交易者可以得到对他们有用的东西的东西。 小题6:根据第二段最后一句“These traders usually prefer face-to-face trading, which means they don’t have to worry about who is going to pay for the delivery.”知答案应选D：交易者喜欢面对面交易，因为他们不必付运费。

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