1. His hard work exhausted him. 2. Somebody took my pen. 3. He said that someone had stolen his wallet. 4. We heard their steps. 5. They are attacking someone. 6. Who has Tom invited to dinner? 7. Liz said that her cat had been eaten the fish. 8. I left all the books at home. 9. At the moment the pupils are learning a new rule. 10. My brother wrote this story. 11. We have already taken the dog for a walk. 12. My parents promised me a new computer. 13. Christy can finish the work. 14. They will reach the agreement tomorrow. 15. At seven o’clock my father was repairing the bicycle.