根据短文内容和所给中文提示，在空白处写出正确的单词，每空一词。
Many people have cars in the city. But pollution is a problem because of the {#blank#}1{#/blank#} (交通). Nowadays some {#blank#}2{#/blank#} (中心的) cities around the world don't have cars. These car free zones(无车区) are areas (地区) for people, bicycles, and public transportation only.
{#blank#}3{#/blank#} (百万) of people live in the center of London and another two million go to work there every day. The downtown area is very {#blank#}4{#/blank#} (吵闹的) with hundreds of cars, buses and taxis, but there are {#blank#}5{#/blank#} (也) a lot of beautiful parks with free music concerts. At lunchtime, many people go there for a rest {#blank#}6{#/blank#} (在……后)they finish work.
Parts of Tokyo are always crowded with hundreds of people but no cars! These modern car- free zones are {#blank#}7{#/blank#} (真正地) popular and people like shopping there,
In the past, Bogota was polluted because there {#blank#}8{#/blank#} (有) lots of cars and traffic. Now the downtown area is a car-free zone and it is {#blank#}9{#/blank#} (干净的)! Many people don't have a car and half a million people {#blank#}10{#/blank#} the bus to work. There are lots of stores. It's not expensive to shop there.
