The Stray Dogs

（单词翻译:单击）

    The Stray¹ Dogs
Five stray dogs were roaming² about looking for something to eat when they came to a deep river．On the river bed they could see a bag full of bones that someone had thrown away． The bones looked very good and the dogs sat on the bank with their mouths watering，wondering how they could get at them．“There is only one thing to do，”said the oldest dog at last．“We must drink up all the water． Then we shall be able to jump in and feast³ to our hearts' content．Come on，let's begin．”
    The five dogs began to lap at the water flowing past．They drank and they drank and they drank．In fact they drank so much that before long they burst themselves with drinking！
    The river took no notice．It flowed on as fully⁴ as ever，washing over the bones，wearing them away in its current until only a pile of whitened sticks remained．Don't try to do the impossible．Exercises：
    回答下列问题：
    ① What did they see on the river bed？
    ② What did the oldest dog say at last？
    ③ What happened to them all？