Soluzione del esercizio 2 di Step Up Gold 3

Esercizi svolti per il libro Step Up Gold 3

Soluzione

  1. The ISS (b) stays in space all the time.
  2. People on the ISS (c) are from many different countries.
  3. The hardest time on the ISS is (a) when people get there.
  4. The astronaut believes the ISS is important because (b) it helps to plan other space journeys.