Soluzione del esercizio 2 di Engage!, Vol. 1

Esercizi svolti per il libro Engage!, Vol. 1

Soluzione

  1. Has someone taken my umbrella?
  2. I haven't seen Mary since last month.
  3. How long have your parents been married?
  4. Have you done your homework yet?
  5. I have just had a big sandwich.
  6. We have already seen this film.