The Present Perfect (have or has)

I ... not seen Victor since last year.

I ... known her for 12 years.

It ... not rained simce March.

We ... been friends since childhood.

They ... had this car for 6 months.

We ... not been to the cinema for many years.

Kate ... not eaten ice-cream since summer.

My parents ... not discussed this questions since Monday.

They ... not seen each other for ages.

My friends and I ... not skated since last winter.