They (not listen) carefully during the presentation, so they missed important details.
They weren't listening carefully during the presentation, so they missed important details.
Last summer, I (discover) a hidden café in my neighbourhood.
Last summer, I discovered a hidden café in my neighborhood.
What (you do) when I called you last night?
What were you doing when I called you last night?
I (clean) the house when I found an old letter from my childhood.
I was cleaning the house when I found an old letter from my childhood.
We (drive) through the countryside when we saw a beautiful rainbow.
We were driving through the countryside when we saw a beautiful rainbow.
I (not see) him at the party last night, even though I was looking for him everywhere.
I didn't see him at the party last night, even though I was looking for him everywhere.
They (travel) through Europe when they got lost in a small village.
They were traveling through Europe when they got lost in a small village.
We (run) into an old friend while we were shopping yesterday.
We ran into an old friend while we were shopping yesterday.
How (they spend) their last holidays?
How did they spend their last holidays?
By the time I got to the party, everyone (already, leave).
By the time I got to the party, everyone had already left.
I (never, feel) so excited before my first solo trip abroad.
I had never felt so excited before my first solo trip abroad.
I (not understand) the importance of this decision until I saw the consequences later on.
I hadn't understood the importance of this decision until I saw the consequences later on.
I (write) an email when I heard someone knock on my door.
I was writing an email when I heard someone knock on my door.