Past Perfect - answers

Ex. 1

  1. had eaten
  2. had lived
  3. had they spent
  4. Had he borrowed
  5. had not studied

 

Ex. 2

  1. went/had bought
  2. came back/had done
  3. hadn't asked/bought
  4. had bought/moved in
  5. studied

 

Ex. 3

  1. c
  2. c
  3. b
  4. a
  5. c
  6. b
  7. c
  8. a
  9. c
  10. c