1. They ________ leaving for the airport when I last saw them.

2. He migrated to Istanbul five years ________ .

3. I've been studying Italian ________ I was five years old.

4. The chairman of the board has been employed in the finance industry ________ 1984.

5. You're really annoying me. You're doing it ________ purpose, aren't you?

6. The police located the art work which ________ been stolen from the gallery.

7. The flight ________ delayed because of bad weather.

8. I had a crash yesterday afternoon. Fortunately I didn't do too much damage ________ my car.

9. ________ does NATO stand for?

10. ________ it raining when you left your office this afternoon?