Soluzione del esercizio 31 di Performer B1, Vol. 1

Esercizi svolti per il libro Performer B1, Vol. 1

Soluzione

  1. The invention of bicycle at an international vintage cycling festival.
  2. All the bicycles allowed will be those built before 1986 and all the cyclists will wear vintage outfits.
  3. A charitable fund that supports the building of wells in India and Africa to supply clean water.
  4. The frequency, punctuality and speed of trains.
  5. On the sea routes from Argentina to the Antarctic.
  6. After sunrise or before sunset.