I.
1. This book is (you) yours.
2. The ball is (I) mine.
3. The blue house is (we) ours.
4. The bag is (she) hers.
5. We met Peter and Marry last afternoon. This garden is (they) theirs.
6. The hat is (he) his.
7. The pictures are (she) hers.
8. In our garden is a bird. The nest is (it) its.
9. This dog is (we) ours.
10. This was not my mistake. It was (you) yours.
II.
1.$C$
2.$B$
3.$B$
4.$C$
5.$A$
III.
1. our
2. his
3. His
4. hers
5. her
6. my
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