bought a pig in a pokeの例文

例文

1. Moore said, " we have bought a pig in a poke ."
2. He bought a pig in a poke and when he opened it he let the cat out of the bag.
3. "I figured I might be able to make a deal based on my name, and then the publisher might read the book and say, ` We bought a pig in a poke here .'I thought it would be much better if I wrote the entire novel and sent it out.