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.

. Griffin was a scientist. He had studied biology, chemistry and physics at the University and now wanted to start doing research and become famous. He was experimenting with light. The young scientist worked as a full-time assistant Professor in the laboratory, and spent all his time there. He made many experiments before he achieved results. Griffin was a real inventor - he could make any thing invisible (invisible). He thought he was going to get everything he wanted from his invention, so he made himself invisible. He wanted to present his discovery to the scientific world, but in order to do so, he had to be visible, and he could not do that. He was angry with people because no one had supported his experiments, and now he could not return to the real world. Griffin used his invention to destroy people. He became the "invisible man" and everyone was afraid of him. His discovery did not benefit the people.

2.

"What does your older brother do?"

"He works as an accountant for a computer company.

"Does he work part-time?"

- No, he works Monday to Friday from 9 to 7.

"How long has he been there?"

"Three years."

"Does he like his job?"

"I think so, he earns well and has three weeks off every year. "What's his job?"

- He works with numbers, I don't know the details. I prefer to work with people. I think I'll be a teacher.

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