Ответ:

Правильная форма зависит от времени и конструкции предложения.

  1. I washed my hands because they were dirty.
  2. Somebody has broken this window.
  3. I feel good. I slept very well last night.
  4. We saw a very good film yesterday.
  5. It rained a lot while we were on holiday.
  6. I've lost my bag. Have you seen it?
  7. Rosa's bicycle was stolen last week.
  8. I went to bed early because I was tired.
  9. Have you finished your work yet?
  10. The shopping centre was built about 20 years ago.