Помогите пожалуйста!
Раскройте скобки и выберите нужную форму: Past Simple или Past Perfect. Переведите.
1. He (to think) he (to meet) her before.
2. The economist (to work) in our department for ten years.
3. The head of the department (to receive) the latest cata-logues last week.
4. That contract that you (to sign) (to be) profitable for our company.
5. My friend (to thank) me for what I (to do).
За ранее большое спасибо!