Past Perfect Continuous (I had been doing)

Past Perfect Continuous (I had been doing) 16.1 1. I was very tired when I arrived home. I had been working hard all day. 2. The two boys came into the house. They had a football and they were both very tired. They had been playing football. 3. There was nobody in the room but there was a smell of cigarettes. Somebody had been smoking in the room. 4. Ann woke up in the middle of the night. She was frightened and didn't know where she was. She had been dreaming. 5. When I got home, Mike was sitting in front of the TV. He had just turned it off. He had been watching TV. 16.2 1. We played tennis yesterday. Half an hour later after we began playing, it started to rain. We had been playing for half an hour when it started to rain. 2. I had arranged to meet Tom in a restaurant. I arrived and waited for him. After 20 minutes I suddenly realized that I was in the wrong restaurant. I had been waiting for 20 minutes when I suddenly realized that I was in the wrong restaurant. 3. Sarah got a job in a factory. Five years later the factory closed down. At the time the factory closed down, Sarah had been working there for five years. 4. I went to a concert last week. The orchestra began playing. After about ten minutes a man in the audience suddenly began shouting. The orchestra had been playing for about ten minutes when a man in the audience suddenly started shouting. 5. I began walking along the road. I had been walking along the road for sometime when I saw my school friend waving out to me. 16.3 1. It was very noisy next door. Our neighbours were having a party. 2. We were good friends. We had known each other for a long time. 3. John and I went for a walk. I had difficulty keeping up with him because he was walking so fast. 4. Mary was sitting on the ground. She was out of breath. She had been running. 5. When I arrived, everybody was sitting around the table and talking. their mouths were full. They were eating. 6. When I arrived, everybody was sitting around the table and talking. their mouths were empty but their stomachs were full. They had been eating. 7. Jim was on his hands and knees on the floor. He was looking for his contact lens. 8. When I arrived, Kate was waiting for me. She was rather annoyed with me because I was late and she had been waiting for a very long time. 9. I was sad when I sold my car. I had had it for a very long time. 10. We were extremely tired at the end of the journey. We had been traveling for more than 24 hours.