Read and finish the sentences with the correct word of phrase

Whose [ ]?— It's [ ]. — It's [ ].

1. Whose dictionaries are those? — They're your dictionaries. — They're
   [ ].
2. Whose
   [ ]?
   — It's his book. — It's
   [ ].
3. Whose
   [ ]?
   — They're her keys. — They're
   [ ].
4. Whose
   [ ]?
   — It's our bike. — It's
   [ ].
5. Whose
   [ ]?
   — They're your shoes. — They're
   [ ].
6. Whose
   [ ]?
   — It's their flat. — It's
   [ ].