Soluzione del esercizio 4 di Performer B1, Vol. 2

Esercizi svolti per il libro Performer B1, Vol. 2

Soluzione

  1. climate change
  2. energy from other sources; carbon dioxide emissions
  3. Wasting water; the health
  4. natural gas; pollution
  5. turn off the lights
  6. choosing; reduce waste
  7. Taking care