I __________ (open) the door when I __________ (hear) a noise.
I opened the door when I heard a noise.
She __________ (cook) dinner while her brother __________ (set) the table.
She was cooking dinner while her brother was setting the table.
We __________ (walk) home when it suddenly __________ (begin) to snow.
We were walking home when it began to snow.
He __________ (lose) his keys while he __________ (run) in the park.
He lost his keys while he was running in the park.
I __________ (read) a book when my phone __________ (buzz).
I was reading a book when my phone buzzed.
They __________ (build) a sandcastle when the wave __________ (hit).
They were building a sandcastle when the wave hit.
She __________ (listen) to music while she __________ (clean) her room.
She was listening to music while she was cleaning her room.
We __________ (drive) to school when the car __________ (stop).
We were driving to school when the car stopped.
He __________ (write) an email when the computer __________ (crash).
He was writing an email when the computer crashed.
I __________ (take) a shower when the lights __________ (go) out.
I was taking a shower when the lights went out.
They __________ (play) cards while their parents __________ (talk).
They were playing cards while their parents were talking.
She __________ (watch) a movie when her friend __________ (call).
She was watching a movie when her friend called.
We __________ (study) for the test when the fire alarm __________ (ring).
We were studying for the test when the fire alarm rang.
He __________ (sleep) when the dog __________ (bark).
He was sleeping when the dog barked.
I __________ (carry) groceries when the bag __________ (break).
I was carrying groceries when the bag broke.
They __________ (wait) at the bus stop when the bus __________ (arrive).
They were waiting at the bus stop when the bus arrived.
