Yesterday morning Tim rode his bike to school as usual.He was riding very fast when a car was
coming.He did not see the car until it was too 1ate.His bike hit the car and he fell off his bike.The
driver helped him stand up.Luckily he was not badly hurt.The policeman saw what happened,he said
to Tim,"1t's very dangerous to ride too fast.
（答案不唯一）