6.
1. My granddad wasn't an actor. He was a teacher.
2. They weten't lazy. They were hard-working.
3. My first teacher wasn't English. It was Spanish.
4. Gertrude Elion wasn't a writer. She was a scientist.
5. Marie Curie wasn't from America. She was from Poland.
7.
1. there were
2. there wasn't
3. there was
4. there weren't
5. there were
6.therer were.