Soluzione del esercizio Grammar 5 - 8 di Performer B1 Phases, Vol. 1

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

Soluzione

  1. You must wear your helmet when you ride your bike.
  2. She mustn't drive fast in the town centre.
  3. We must cross the road at the zebra crossing.
  4. He mustn't leave the computer on.
  5. They mustn't be late for the test.