Ответ:

1 The museum was broken into by robbers  last night.

2 Twenty paintings were stolen by them.

3 I had the feeling that I was being watched by him.

4 This matter should be taken seriously by you.

5 More and more phones are being bought by people every day.

6 The memorial has been damaged by someone.

7 I'm afraid your computer can't be used by you anymore.

Объяснение: