Soluzione del esercizio 5 di Performer B1 Phases, Vol. 1

Esercizi svolti per il libro Performer B1 Phases, Vol. 1

Soluzione

  1. 're trying on
  2. Is Mary looking for
  3. 'm not putting
  4. 're walking
  5. isn't watching; 's still working
  6. 's shopping
  7. Is Dad buying