Soluzione del esercizio 31 di Performer B1, Vol. 2

Esercizi svolti per il libro Performer B1, Vol. 2

Capitolo

Esercizio

Soluzione

Kind of plane: Boeing 747.
Travelling from: Orlando.
Landed at: London Gatwick.
Flight's energy source: a new blend of normal jet fuel and ethanol produced from waste gases.
Fuel blend's impact: 5% recycled, but the sustainable element could increase up to 50%.
Airline founder: Sir Richard Branson.