1. They --- (live) in Istanbul since 2003.
2. The auditors --- (check) the accounts for three days.
3. My friend --- (work) in the same company for ten years.
4. You --- (learn) English for years.
5. I'm very tired. I --- (study) since 7 am.
6. We --- (wait) for you for an hour.
7. The children --- (play) in the garden since morning.
8. It --- (rain) for two hours.
9. Since yesterday she --- (prepare) that report.
10. The footballers are wet. They --- (run) in the rain.
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