Bonsoir aidez moi pour cet exo en Anglais svp​

Réponse:

Voilà :

He was listening to music ?

I was not singing.

What were they doing ?

He was working when his friend came.

They were working while she was writing a letter.

Yesterday, he was going to school at 7.30 a.m.

I was sleeping when the phone rang.