1. When she (came) to the gym, her personal trainer (was) there.
2. She (was speaking) to the fitness coach, when I (arrived).
3. I (got) a very nice body, when I (started) working out.
5. I (have begun) to breathe easier. I (run) long distances every day.
6. When she (came) to the gym, she (saw) many weights and machines.
7. Arnold Schwartzenegger (had been) a bodybuilder before he (became) a politician.