Join following pairs of sentences substituting the Past Perfect for the Past Simple in one of the clauses according to the sense. Make use of the conjunctions: after, before, when, till, until. Pattern: They came. She finished her work. They came after she had finished her work.
1. The children returned from school, mother cooked dinner. 2. They went for a walk. It stopped raining. 3. The frosts began she made winter things for her children. 4. I waited she did the room. 5. He took his bath. His wife laid the table for breakfast. 6. Nick left for school Nelly was ready. 7. The children fell asleep. The parents came back from the pictures. 8. Mother waited. The children went to the skating – rink. 9. The bell rang. He went to bed. 10. She called on them. They went to the pictures. 11. They came to the skating- rink. The snow began. 12. It grew dark. The children went home.