根据下面所给的关键词写句子,然后发挥想象将所写句子组成一个小故事.（要求用过去时）

Last Sunday,it was sunny.Ann,Lucy and Mike wanted to climb the mountain.They drove their car to the mountain early that morning,but the car broke down on the way.They had to stop at the half way waiting the car repaired.After their car was repaired,they went on to go to the mountain .It was late when they arrived at the foot of mountain .So they decided climbed the mountain quickly.Unfortunately,Mike fell down on the road and hurt his arm.The others helped him stand up slowly and began to walk back,all unhappy.