Сделайте из утвердительных предложений отрицательные.
1. They make cakes.
2. We played chess.
3. She works at the post-office.
4. You will know the answer.
5. They speak English.
6. She saw him yesterday.
7. Ron feels bad.
8. They will see him next day.
9. Birds eat corn.
10.The daughter slept well.