Soluzione del esercizio 8 di Performer B1, Vol. 2

Esercizi svolti per il libro Performer B1, Vol. 2

Soluzione

  1. can’t have gone
  2. may / might / could have left
  3. must have passed
  4. may / might / could have understood
  5. may / might / could have seen
  6. must have happened