Это Ваша записная книжка, а это его

Это Ваша записная книжка, а это его, но где же моя? 7. Он, должно быть, перепутал ключи и взял ключ соседа вместо своего.

Результаты (английский) 1:

This is your notebook, and it's his, but where is my? 7. He must have mixed up the keys and took the key instead of its neighbor.

Результаты (английский) 2:

This is your notebook, and this is it, but where is mine? 7. He must have mixed up the keys and took the key instead of his neighbor.

Результаты (английский) 3:

this is your notebook, and that's it, but where is my? 7. he must have mixed up the keys and get the key from its neighbor.