Past perfect simple vs past perfect continuous 2 - tutto inglese - Imparare l'inglese gratis on line

I (live) in the city before I moved to the countryside.
She (work) at the company for ten years before she got a promotion.
He (fix) the roof before it started raining.
They (jog) every morning before breakfast for a month.
I (explain) the procedure before the experiment commenced.
She (listen) to the lecture for an hour when she realized her mistake.
They (pack) their bags before the vacation was called off.
He (play) the piano since he was a child when he gave his first concert.
We (complete) the project when our leader decided to expand it.
She (look) for her keys for hours when she found them in her coat pocket.