Soluzione del esercizio 9 di Performer B1, Vol. 1

Esercizi svolti per il libro Performer B1, Vol. 1

Soluzione

  1. needn't
  2. mustn't
  3. don't need to
  4. doesn't need to
  5. mustn't
  6. mustn't
  7. don't need to
  8. don't need to