1. When I called them, _____ weren’t home.
they
he

2. She is _____ the supermarket.
on
at

3. I would have made some bread, _____ I was out of flour.
and
but

4. _____ are really tired!
We
It

5. Please return _____ hat to him.
their
his

6. I received a postcard _____ Hawaii.
from
for

7. _____ car over there is mine.
That
This

8. Please do _____ walk in the grass.
never
not

9. Please do _____ walk in the grass.
n't
nt'

10. This book was written _____ a famous author.
in
by