Translate the following English sentences into Russian, filling in the blanks with the correct possessive pronouns: 'a friend of mine / his / hers / ours / yours / theirs.'

Перевод (RU)

• 1. This is not my book, it is a friend of mine.
• 2. The red car is not John's, it is his.
• 3. The blue dress is not Mary's, it is hers.
• 4. This house is not ours, it is yours.
• 5. That dog is not theirs, it is ours.
• 6. The children's toys are over there, they are theirs.