1. While I __________ (read), the phone __________ (ring).
  2. They __________ (walk) through the park when it __________ (start) to rain.
  3. She __________ (watch) TV at 8 PM last night.
  4. We __________ (eat) dinner when you __________ (call).
  5. He __________ (find) his old jacket while he __________ (clean) the attic.
  6. I __________ (not understand) the movie because I __________ (not listen) at the beginning.
  7. They __________ (sit) at the café all afternoon yesterday.
  8. The cat __________ (sleep) on the sofa when I __________ (arrive) home.
  9. You __________ (miss) the bus because you __________ (not hurry).
  10. Maria __________ (study) for her exam all week because she __________ (want) to get a good grade.

Answers for Self-Checking:

  1. was reading ... rang
  2. were walking ... started
  3. was watching
  4. were eating ... called
  5. found ... was cleaning
  6. didn't understand ... wasn't listening
  7. were sitting
  8. was sleeping ... arrived
  9. missed ... weren't hurrying
  10. was studying ... wanted