Soluzione del esercizio 11 di Performer B2 - Workbook

Esercizi svolti per il libro Performer B2 - Workbook

Soluzione

  1. has been living; since
  2. 've been waiting; for
  3. 've been living; for
  4. haven't been paying; since
  5. 's been reading' for
  6. have you been learning; Since
  7. Have you been using; since
  8. hasn't been sleeping; for