Soluzione del esercizio Grammar 1 - 5 di Performer B1 Phases, Vol. 1

Esercizi svolti per il libro Performer B1 Phases, Vol. 1

Soluzione

  1. couldn't, can
  2. can't, could
  3. couldn't, can't
  4. Ewan could swim before, and he can now.
  5. Ewan couldn't play badminton before, but he can now /; Ewan can play badminton now, but before he couldn't.