听短文根据你所听到的短文内容,完成下面表格，每空填一词。
A Kind of Little Cars |
Size | As small as a ____(1)________ |
Speed | ____(2)________kilometers an hour |
Advantages | There will be less ____(3)________in the air. |
There will be more ____(4)________ for cars and the people. |
They can save a lot of ____(5)________ |
Disadvantages | They can not be useful for a long trip. |