Раскройте скобки и поставьте сказуемые в past simple. переведите. but when i (to arrive) there no one in the office раскройте скобки и выберите нужную форму: past simple или past perfect. переведите. the economist (to work) in our department for ten years. that contract that you (to sign) (to be) profitable for our company.
The economist had worked (Можно had been working) in our department...
That contract you had signed was profitable...