More and more A{#blank#}1{#/blank#} are going to work by bike. Do you know why more people are riding bikes to work? We can answer the question in d{#blank#}2{#/blank#} ways. First, bikes don't need gasoline(汽油)，so it takes little m{#blank#}3{#/blank#} to use them. S{#blank#}4{#/blank#}  a bike doesn't need much space, so it is e{#blank#}5{#/blank#} to find a place for it. And to ride a bike is good for one's h{#blank#}6{#/blank#} .People often d{#blank#}7{#/blank#} their cars to offices or to shops in the past. But now people think riding bikes is a good way of d{#blank#}8{#/blank#} sports. That's w{#blank#}9{#/blank#} more Americans are now riding to work by bike, and they are leaving（把...留下）their o{#blank#}10{#/blank#} cars at home.

   We often talk about the {#blank#}1{#/blank#} (优点) and disadvantages of Internet shopping these days. Some people think it's a new {#blank#}2{#/blank#} (方式) for us to go shopping on the Internet. The shops on the Internet, for·example taobao.com, 360buy.com  {#blank#}3{#/blank#} open for almost 24 hours a day, so we can buy something at any time. And we needn't to wait a long time and we can {#blank#}4{#/blank#} (收到) it {#blank#}5{#/blank#} (任何地方) in the world. It doesn't {#blank#}6{#/blank#} much time. The {#blank#}7{#/blank#} (价格) of the product is much cheaper on the Internet.

    But some people don't like shopping {#blank#}8{#/blank#} (线上). They can't see the things or {#blank#}9{#/blank#} (试穿) them on while they are shopping. Also,  {#blank#}10{#/blank#} (付款) over the Internet isn't always safe. And they can't enjoy the happiness of shopping with their friends.