把下列句子重新排列順序
( ).A.Kent is a good student.
( ).B.When he grows up,he becomes a doctor,and a very good doctor!
( ).C.On a Saturday morning,he and his friends go to swim in a lake bu bike.
( ).D.He still goes to school,and studies very hard.
( ).E.His legs are broken.
( ).F.The doctors say he can never walk again.
( ).G.He must use a wheelchair all his life.
( ).H.He wants to be a doctor some day.
( ).I.Kent falls off his bike to the foot of the hill.
( ).J.Kent is sad,but he doesn't give up.