1. What
were you doing (Past Continuous) when I
called (Past Simple) you?2. They
were cleaning (Past Continuous)the windows when it
started (Past Simple) to rain.3. Nora
was riding (Past Continuous) her bicycle when she
noticed (Past Simple)a nice kitten.4. While I
was doing (Past Continuous)my homework the telephone
rang (Past Simple).5. While we
were washing (Past Continuous)the floor we
found (Past Simple)a key.6. He
heard (Past Simple)a loud noise when he
was sitting (Past Continuous)in the garden.7. Linda
was typing (Past Continuous)a letter when her boss
arrived (Past Simple).8. Melany
was cooking(Past Continuous) dinner when her husband
came (Past Simple) home.9. When he
was driving (Past Continuous)to work, he
remembered (Past Simple)that his briefcase
was (Past Simple) still at home.10. Kelly
was looking (Past Continuous) out of the window when she saw Mike.