Cover of the textbook English Grammar in Use

The key answer of exercise 16.3

The key to exercise solutions in chapter Unit 16 - Past perfect continuous for the textbook English Grammar in Use with authors Raymond Murphy from Cambridge University Press


Put the verb into the most suitable form, past continuous (I was doing), past perfect (I had done) or past perfect continuous (I had been doing).


  1. were having
  2. We'd known
  3. he was walking
  4. She'd been running
  5. They were eating
  6. They'd been eating
  7. He was looking
  8. was waiting; she'd been waiting
  9. I'd had
  10. We'd been travelling