大灰狼的故事英文版如下：
Once upon a time, in the forest, there was a big, bad wolf. He was always looking for his next meal, and he was determined to find some tasty little animals to eat.
One day, he saw three little pigs building their houses. He thought to himself, "I know what I'll do, I'll trick them into telling me where their house is and then I'll eat them."
So he approached them and asked, "Do you know where the house of the Biggest Little Pig is?"
The first and second pigs ran away in fear, but the third one stood his ground and said, "I won't tell you where my house is, because if I do, you'll eat me!"
So the wolf had to go after them, because he didn't want to run the risk of having his plan ruined. After chasing the third pig for a while, he realized that he couldn't catch him. He also realized that he was hungry and needed food. So he turned around and headed back to his den to rest.
This story teaches us that we should always be careful of who we trust, and that sometimes, even the biggest and baddest of predators can be defeated by a little ingenuity and courage.