1. I *was reading* a book when you called.
Hint: Azione in corso (“leggere”) mentre stavi chiamando.
2. They *were playing* football at 5 p.m.
Hint: Plurale, “giocare”, azione abituale.

3. She *was listening* to music while she was studying.
Hint: Due azioni contemporanee (“ascoltare” e “studiare”).
4. We *were waiting* for the bus at the station.
Hint: Plurale, “aspettare”, azione prolungata.
5. He *was watching* TV all evening.
Hint: Terza persona singolare, azione di durata.
6. The children *were running* in the park.
Hint: Plurale, azione in corso (“correre”).
7. I *was cooking* dinner at seven o’clock.
Hint: Prima persona singolare, “cucinare” alle 7.
8. He *was raining* when we went out.
Hint: Azione generale di tempo (“pioveva”).
9. You *were studying* all night.
Hint: Seconda persona, azione prolungata.
10. My parents *were travelling* in Italy last summer.
Hint: Plurale, azione di lunga durata.

1. I *wasn’t sleeping* when you arrived.
Hint: Negazione: “non dormivo”.
2. Was she *doing* her homework?
Hint: Domanda: “stava facendo i compiti?”.
3. We *weren’t playing* football in the rain.
Hint: Negativa: “non stavamo giocando”.
4. Were they *watching* TV when you called?
Hint: Domanda plurale.
5. He *wasn’t listening* to the teacher.
Hint: Negazione: “non ascoltava”.
6. Was it *raining* when you left the house?
Hint: Domanda generale di tempo.
7. You *weren’t working* yesterday morning.
Hint: Negazione seconda persona.
8. Were we *waiting* in the wrong place?
Hint: Domanda, “stavamo aspettando?”.
9. The dogs *weren’t barking* when I got home.
Hint: Negazione plurale.
10. Was Tom *studying* for the test?
Hint: Domanda, “stava studiando?”.