Ответ:
1. sailed
2. were performing (they were in the process)
3. How did the thief break into the museum?
4. ...was vandalising a statue when the police caught him
5. ... was taking a picture of the exhibits when the guard yelled at him.
6. didn't invent
7. was sketching / was painting.
8. led
9. Did Ken go ...?
10. was shining / were singing
Объяснение: