Correct the mistakes in these sentences.

1. Исправь ошибки в предложениях.

1. The Countess paid £20,000 for the diamond.
2. It disappeared from the Countess's house.
3. The police think James Ryder took it.
4. Holmes understands how the diamond got into the goose.
5. Holmes wants to find John Horner.
6. Peterson leaves the diamond with his wife.
7. Peterson must buy a hat for Henry Baker.