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While I __________ (walk) home, I __________ (see) an old friend.
While I was walking home, I saw an old friend.
I __________ (sleep) when my phone __________ (ring).
I was sleeping when my phone rang.
At 8 o’clock yesterday evening, I __________ (read) a book in my bedroom.
At 8 o’clock yesterday evening, I was reading a book in my bedroom.
When I __________ (open) the door, my sister __________ (talk) on the phone.
When I opened the door, my sister was talking on the phone.
Sarah __________ (do) her homework when her brother __________ (come) into the room.
Sarah was doing her homework when her brother came into the room.
While Emma __________ (ride) her bike, she __________ (fall) off.
While Emma was riding her bike, she fell off.
Lisa __________ (not/watch) TV at 6 p.m. yesterday. She __________ (study) for her test.
Lisa wasn’t watching TV at 6 p.m. yesterday. She was studying for her test.
The baby __________ (sleep) peacefully when someone __________ (make) a loud noise.
The baby was sleeping peacefully when someone made a loud noise.
We __________ (watch) a movie when the lights __________ (go) out.
We were watching a movie when the lights went out.
The students __________ (talk) when the teacher __________ (enter) the classroom.
The students were talking when the teacher entered the classroom.
What __________ you __________ (do) when I __________ (call) you yesterday?
What were you doing when I called you yesterday?
We __________ (walk) through the park when we __________ (find) a lost wallet.
We were walking through the park when we found a lost wallet.
Tom __________ (play) football when it __________ (start) to rain.
Tom was playing football when it started to rain.
My dad __________ (cook) dinner while I __________ (set) the table.
My dad was cooking dinner while I was setting the table.
While the children __________ (play) in the garden, their dog __________ (run) away.
While the children were playing in the garden, their dog ran away.
While Maria __________ (clean) her room, she __________ (find) an old photo.
While Maria was cleaning her room, she found an old photo.
They __________ (have) dinner when their parents __________ (arrive).
They were having dinner when their parents arrived.
We __________ (wait) for the bus when we __________ (hear) a strange noise.
We were waiting for the bus when we heard a strange noise.
Jack __________ (drive) to work when he __________ (notice) a problem with his car.
Jack was driving to work when he noticed a problem with his car.
At 10 p.m. last night, my friends __________ (play) a board game, but I __________ (sleep).
At 10 p.m. last night, my friends were playing a board game, but I was sleeping.