You (laugh) when I took the photo.
were laughing
It (snow) when our plane landed.
was snowing
We (not drive) fast when the accident happened.
weren't driving / were not driving
What (he/do) when his boss arrived?
was he doing
Why (you/cry) at the party?
were you crying
I (sit) on the bus when I saw my boyfriend with another girl.
was sitting
They (live) in New Zealand when their first child was born.
were living
He didn't call you because his mobile phone (not work).
wasn't working / was not working
