Write the negative and interrogative 1. Elephants eat tigers. Elephants do not eat tigers. Do elephants eat tigers? 2. Bears fly. Bears doesn't fly 3. I like snakes and spiders. I don't like snakes and spiders 4. She finds monkeys noisy. She doesn't find monkeys noisy 5. Giraffes live in Europe. 6. Peacocks are noisy. 7. We work very hard.
2 He wouldn't have sold his plants for a telephone if he hadn't become ill.
3 If she had sold his ideas, he would have become a very rich man.
4 If Meucci had published his ideas, Alexander Graham Bell wouldn't have become so famous.
5 If Gutenberg hadn't invented the printing press, ordinary people wouldn't have had books.
6 If European countries hadn't had gunpowder, they wouldn't have built such big empires.
7 If Fleming hadn't discovered penicillin, we wouldn't have found a cure for many disease.
8 If someone else hadn't invented the World Wide Web, perhaps they wouldn't have made it free.