Soluzione del esercizio 8 di Performer B1, Vol. 2

Esercizi svolti per il libro Performer B1, Vol. 2

Soluzione

  1. The computer has been processing data since this morning.
  2. I've been waiting here for ages. Where have you been?
  3. Paul has texted his friends five times today.
  4. How long have you had this pen drive?
  5. Have you seen this TV series twice?
  6. 'What have you been doing all morning?' 'I've been studying History.'
  7. They've known their neighbours for two weeks.
  8. 'Why are you sweating?' 'We've been redecorating the sitting room.'