№6.
you - your
he - his
she - her
it - its
we - our
you - your
they - their
№7.
1. school (we) This is our school. Is this our school?
2. school bag (you) This is your bag. Is this your bag?
3. pencil (he) This is his pencil. Is this his pencil?
4. rubber (she) This is her rubber. Is this her rubber?
5. grandpa (they) This is their grandpa. Is this their gradnpa?
6. ball (it) This is its ball. Is this its ball?
7. pencil case (I) This is my pencil case. Is this my pencil case?