Choose the present perfect or past simple:John _________________ (not call) me

Choose the present perfect or past simple:

John _________________ (not call) me recently.
They _________________ (buy) a new car last month.
The teacher _________________ (not return) the tests yet.
How long _________________ she _________________ (know) about this problem?
_________________ you ever _________________ (hear) such an unbelievable story?
When I was a child, I _________________ (live) in England for two years.
He _________________ (buy) me a beautiful gift for my birthday.
I am so excited to have a dog. I _________________ (always / want) one.
They _________________ (go) to Venice three years ago.
She feels great. She _________________ (lose) five kilos since Christmas.