Past simple/past continious. 1)i watched/was watching a dvd when my cat jumped/was jumping on me. 2)sue was watering/watered the flowers when it started/start to rain. 3)they were walking/walked to school last monday because there was no bus. 4)i ate/was cating a sandwich while my parents drank/were dranking coffe.
2. was watering, started
3. were walking
4. was eating, drank