Write the Past Perfect Continuous form of the verb given in brackets.

Difficulty: Easy
  1. Saleem was sitting on the chair, out of breath. He had been running (run).
  2. We had been walking (walk) along the road for 20 minutes when a car stopped and the driver offered us a lift.
  3. I had been doing (do) my homework for two hours when my friend came.
  4. They had been taken (take) exercise since morning.
  5. The patient had been crying (cry) with pain when the doctor arrived.