Soluzione del esercizio 5 di Identity B1+

Esercizi svolti per il libro Identity B1+

Soluzione

  1. He's been studying in his room.
  2. I've been waiting for 20 minutes.
  3. She's been working in London.
  4. It has been raining since 10 o'clock.
  5. I've been talking to a girl in my class.
  6. They've been watching that film for an hour.