Complete the sentences with the present simple or past simple passive

Complete the sentences with the present simple or past simple passive form of the verbs in the box.
(sell, clean, send, steal, produce)
1. The painting _____ for 7 million in 1998.
2. Our office ______ every night.
3. A lot of pollution ______ by aeroplanes.
4. Millions of emails ______ every hour.
5. Jack's bike _______ last week.