Soluzione del esercizio 10 di Step Up Gold 3

Esercizi svolti per il libro Step Up Gold 3

Soluzione

  1. While we were listening to the teacher, I heard a strange noise.
  2. I was sleeping when they got home.
  3. The rain started while I was talking to Mr Jones.
  4. When I met my boyfriend, we were travelling in Spain.
  5. We were having lunch when the storm started.