#1.
0. was
1. wasn't
2. was
3. weren't
4. were
5. was
6. were
7. wasn't
8. was
#2
1. Was Christopher Columbus Spanish? No, he wasn't.
2. Was Grace Kelly a famous scientist? No, she wasn't.
3. Was Gustave Eiffel French engineer? Yes, he was.
4. Were Michelangelo and Raphael film directors? No, they weren't.
5. Were the Wright brothers American? Yes, they were.
6. Were John Kennedy and Winston Churchill actors? No, they weren't.
#3
1)
1. I was
2. Was it
3. The food was
2)
4. Was your grandfather
5. He wasn't
6. Was he
7. He was
3)
8. Were you
9. We were
10. Were the children
11. They were