Soluzione del esercizio 3 di Into Focus B1

Esercizi svolti per il libro Into Focus B1

Soluzione

  • has been used
  • are made
  • are used
  • are disposed of
  • be
  • are grown
  • isn't polluted
  • are used
  • is thrown away
  • is becoming
  • were made
  • wasn't made
  • was made