Soluzione del esercizio 15 di Identity A2 to B1

Esercizi svolti per il libro Identity A2 to B1

Capitolo

Esercizio

Soluzione

go; 'm riding
are they doing; 're listening to
never cooks; doesn't like
go out with; have got; 're studying
'm playing; are you doing
Is Chris watching; isn't; 's helping