英语的完形填空A forg is born in a small river.When he is y____,the

英语的完形填空
A forg is born in a small river.When he is y____,the river is his home.
He doesn't know his p_____,but he has hundreds of his brothers and sisters.He swims about and plays all daywith them.At that time,he doesn't look like his parents.He has n____legs but he has a long tail.Soshe looks like a f_____.
The his tail gets shorter andshorter.And he has four legs and and a very short t_____.He looks like his parents now.Then he's going to e________a lot of insects a lot of bad insects.