Soluzione del esercizio 4 di Step Up Gold 2
Esercizi svolti per il libro Step Up Gold 2
Soluzione
- Drivers mustn't use mobile phones.
- You're leaving early tomorrow. You must go to bed.
- The students mustn't forget their passports!
- You must wait in line at the bus stop.
- You mustn't cross the road here. It's very busy!