选词填空（每小题1分，共10分）
阅读下面的短文,从所给单词中选出适当的单词,并且用其正确的语言形式填在标有题号的空白处,使句意通顺完整。（每空一词,每个单词使用一次）

them   people   many   like    have  do    around    save cost   for     when   spend   also     popular    buy

 
Cars are very       , but too         cars make much pollution (污染). Now the idea of “car sharing”(拼车) is popular          the world. That’s to say, more          are sharing the use of the car. Not everyone       a car. As we know, so many families have cars today, most of        don’t use it everyday. Some cars     most of their time staying in garages(车库). We don’t use them, but parking(停车) and other things can        us a lot. That needs a lot of money.
To   money, some people thought of the idea of “car sharing”. If we share a car, we can only pay for it       we use it. Now more and more people would     to do car sharing. In Switzerland(瑞士), about 40,000 people are      this thing. Japan is     trying to make “car sharing” popular around the country.
“Car sharing” is a new idea in transportation(交通). It is also very easy     us to go everywhere we want without   ．  a car.