Combine each pair of sentences and rewrite as one using possessive forms.

1. This is Zubin's pet dog. The dog is well-trained.
2. Please return John's series of Harry Potter books.
3. The chair's red cushions are pretty.
4. Where are mummy's boots? They are new.
5. Mr. Biswas's old car broke down today.
6. See the baby's dimples. Don't they look cute?