составте 3 предложения с предлогами for since at

I am working at the museum for 2 years.I've been learning English since 2004.Tommorow i will wake up at 7 o.clock.

I asked to send for a doctor. -  Я попросил послать за доктором.I didn't see him since Monday. - Я не видел его после понедельника.Yesterday I was at school.  - Вчера я был в школе.