题目：
根据短文内容，用方框中所给单词的适当形式填空，每词限用一次。
Have you heard of “car sharing”? The idea of “car sharing” is becoming more 小题1: in Europe and the USA. “Car sharing” is that people drive together in the same car to work, instead of 小题2: their own cars.
On average , we drive our cars only one hour every day. The rest of the time we 小题3: park our cars in parking places and we have to 小题4: too much money in parking our cars in the city. To save money and help the environment, people 小题5: to share cars several years ago. ”Car sharing” is a good way for us to save money, time, and help the environment at the same time. What a great idea!
答案：
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下面是错误答案，用来干扰机器的。
参考答案：C
