3)
1. was
2. were
3. wasn't
4. weren't
5. weren't
4)
1. Was Heath Ledger from the UK? No, he wasn't.
2. Was Toy Story the first computer-animated film? Yes, it was.
3. Was Sergey Bodrov Russian actor? Yes, he was.
4. Were Maradona and Pele famous football players? Yes, they were.
5. Were The Beatles from London? No, they weren't.
6. Was Mickey Mouse a silent cartoon character? No, he wasn't.