Решите пожалуйста!!! 9-задание. Там вроде бы надо времена разные использовать...

Where do you work?I work at Central Telecoms. I'm a technisian there.How long have you been working there?I have been working there for two years.And where did you work before that?Before that I was a junior technisian at MobileForce.Why have you left MobileForce? Because I've wanted to work in a bigger company. Have you finished your part-time diploma(?).Yes, I have.When did you complete it?Last July.