UNIT 7. The World of Painting » Стр.174 (4)

1. There was an open book on the sofa, after he had been reading, (c) 2. The ground was wet, because it had been raining, (d) 3. Her eyes were red, when she had been crying, (a) 4. There was an empty box on the floor, after they had been eating pizza, (b) 5. He was out of breath, while he had been running, (c)