问题描述：
he was crossing the street when a car ___ at that momnent
his bike ___ the car and he ___ off his bike to the ground heavily.the ___ was very kind and stopped to make sure that he to ride more ___ next time and it was dangerous.
his bike ___ the car and he ___ off his bike to the ground heavily.the ___ was very kind and stopped to make sure that he to ride more ___ next time and it was dangerous.
问题解答：
我来补答展开全文阅读