1.

1) Did she has a puppy 3 years ago?

2) Did they have a nice car in 1996?

3) Did we have a nice park near our house many years ago?

4) Did the school have a garden in front?

5) Did the actors have unusual costumes on?

2.

1) had;

2) didn't have;

3) had;

4) do you have;

5) have;

6) had;

7) had;

8) didn't have;

9) have;

10) had.