Употребите в предложениях Present Perfect…

Употребите в предложениях Present Perfect, выбрав пра вильный предлог (since или for). I've worked in the factory (for/since) 1970.He's been abroad (for/since) five years. I studied French (for/since) twelve years. I've known her (for/since) 1982. I've lived here (for/since) I was a child. We've been in Paris (for/since) we were married. I've known them (for/since) years.