Ответ:

7. When I walked into the busy office, the secretary was talking on the phone with a customer, several clerks were busily working at their desks, and two managers were quietly discussting methods to improve customer service.

8. I was watching a mystery movie on T. V. when the electricity went out. Now I am never going to find out how the movie ends.

9. Sharon was in the room when John told me what had happened, but she didn't hear anything because she didn't listen.

10. It's strange that you called because I was just thinking about you.

11. The Titanic was crossing the Atlantic when it stroke an iceberg.

12. When I entered the bazaar, a couple of merchants were bargaining busily and were trying to sell their goods to naive tourists who were hunting for souvenirs. Some young boys were leading their donkeys through the narrow streets on their way home. A couple of men were arguing over the price of a leather belt. I walked over to a man who was selling fruit and was buying a banana.

13. The firemen rescued the old woman who was trapped on the third floor of the burning building.

14. She was so annoying! She always left her dirty dishes in the sink. I think she actually expected me to do them for her.

15. Samantha has lived in Berlin for more than two years. In fact, she lived there when the Berlin wall came down.