С. нужно переписать предложения, используя past simple and past perfect: the police never (find out) where he (hide) the money. she (be) very upset because he (not answer) her e-mails i (know) my wife for 5 years before we finally (marry) in 2009

The police never found it where he had hidden the money.
She was very upset because he hadn't answered her e-mails.
I had known my wife for 5 years before we finally married in 2009.

1. The police never found where he had hidden the money.
2. She was very upset because he hadn't answered her e-mails.
3. I had known my wife for 5 years before we finally married in 2009.