根据对话内容，用方框中所给词的适当形式填空。(其中有一词多余)

问题填空题

follow, bad, first, sports, easy, walk, child, kind

       What's the coolest kind of transportation (交通工具 ) for middle school students back from the
winter holidays? A racing bike? A car? No, it's a special   1   of shoe called Heelys (暴走鞋). Heelys
look just like common   2   shoes, but they have a wheel hidden in the heel (鞋跟). So instead of   3   ,
kids can "fly" around in them.
       "Wearing Heelys is fun and cool," said Wu Peng, a boy who wore them on his   4   day back at No.
6 Middle School in Beijing. Wu Peng said he loves the shoes so much that he wears them wherever he
goes. Sometimes he even   5   his parents' car to the supermarket on his Heelys!
       Other students think these are very cool, but some haven't been so lucky with their Heelys. It's
reported that some   6   have fallen down while using these shoes, and some have been hurt.
        "Heelys wheels are on the heels of the shoes, so it's easy to fall," said Liu Rui, a doctor at the Hong
Kong International Medical Clinic, Beijing. Even   7   , Liu said, "Wearing Heelys for a long time could
stop young people from developing their ankles (脚踝) and legs."

答案

1. kind 2. sports 3. walking 4. first 5. follows 6. children 7. worse