Final answer:
The detailed answer explains how to form affirmative and negative sentences using 'was' or 'were' correctly.
Explanation:
Affirmative sentences:
- This book is interesting. It's not boring.
- They were Japanese. They weren't American.
- We were in the café. We weren't at school.
- Tweetie was a bird. He wasn't a parrot.
Negative sentences:
- This book isn't interesting. It's boring.
- They weren't Japanese. They were American.
- We weren't in the café. We were at school.
- Tweetie wasn't a bird. He was a parrot.
Learn more about affirmative and negative sentences here:
https://brainly.com/question/37355083