A crow(乌鸦)is 1 . He finds a bottle with a little water in it. But the neck of the bottle is too 2 . The crow can't 3 the water. The crow thinks and thinks, and then he has a good idea. He puts some pebbles(卵石)4 the bottle. The water rises up(上升). Now he can drink the water. What a 5 crow!