Soluzione del esercizio 6 di Identity B1+
Esercizi svolti per il libro Identity B1+ con autore Elizabeth Sharman
Domanda
Write sentences using the Present perfect continuous.
Soluzione
- Scientists have been investigating global warming for years.
- William has been donating food to charity.
- You haven't been listening to me!
- Has Katy been studying all morning?
- I haven't been feeling very well.
- What have you been working on?