Tom (fall) off the ladder while he (paint) the room.
Tom (FELL) off the ladder while he (WAS PAINTING) the room.
It (rain) while we (walk) home from work.
It (WAS RAINING) while we (WERE WALKING) home from work.
I (look)out of the window and saw that people (walk) in the park.
I (WAS LOOKING)out of the window and saw that people (WERE WALKING) in the park.
When we (see) the spaceship we (stop) the car.
When we (SAW) the spaceship we (STOPPED) the car.
He (sit) in the garden when a wasp (sting) him in the nose.
He (WAS SITTING) in the garden when a wasp (STUNG) him in the nose.
We (drive) home in the middle of the night when we (see) a flashing light.
We (WERE DRIVING) home in the middle of the night when we (SAW) a flashing light.
I (listen) to music when you (try) to call me.
I (WAS LISTENING) to music when you (TRIED) to call me.
It (be) cold when we (leave) the house that day.
It (WAS) cold when we (LEFT) the house that day.
Last night I (read) in bed when I suddenly (hear) a scream.
Last night I (WAS READING) in bed when I suddenly (HEARD) a scream.
It (snow) when I (leave) home this morning.
It (WAS SNOWING) when I (LEFT) home this morning.
I (see) some birds while I (walk) in the woods.
I (SAW) some birds while I (WAS WALKING) in the woods.
I (meet) an old friend in town, while I (do ) the shopping.
I (MET) an old friend in town, while I (WAS DOING) the shopping.
When I (be) young, I (want) to be a pilot.
When I (WAS) young, I (WANTED) to be a pilot.
Jessica (wear) a bright summer dress, when I (see) her at the park.
Jessica (WAS WEARING) a bright summer dress, when I (SAW) her at the park
It (start) to rain while they (wait) for the bus.
It (STARTED) to rain while they (WERE WAITING) for the bus.
I (sleep) when I (fall) off the bed.
I (WAS SLEEPING) when I (FELL) off the bed.
