读短文，判断正误。

One day, a little sheep is drinking water by the river. A wolf comes up and he wants to eat the little sheep. He says to the sheep, "You make my water dirty, and I can't drink my water now." The sheep says, "I am so far from you. How can I make your water dirty?" The wolf has nothing to say, and then he has another idea. "Last year, you said bad words about me," says the wolf. "Oh, no! I was not born(出生) at that time. You must(肯定) be wrong." the little sheep begins to cry. "Then it must be your dad," says the wolf. Then the wolf eats the sheep.