.... while she was sleeping. (use the phone)
He was using the phone while she was sleeping
... while she was reading (drink coffee)
She was drinking coffee while she was reading
... when his cell phone rang (work)
He was working when his cell phone rang
.... when she fell (not - ride a horse)
She wasn't riding a horse when she fell
... when she fell. She... (not - ride a bike) (ski)
She wasn't riding a bike when she fell. She was skiing
.... when he got hurt. He.... (not - play tennis) (play soccer)
He wasn't playing tennis when he got hurt. He was playing soccer.
People... when they saw a snake. People... (not - sleep) (walk on the street)
People weren't sleeping when they saw snake. People were walking on the street
I ... when the shower head broke. I... (not - use the toilet) (take a shower)
I wasn't using the toilet when the shower broke. I was taking a shower.
The teacher.... when all the student raised their hands. The teacher... (not - give homework) (explain the topic)
The teacher wasn't giving homework when all the students raised their hands. The teacher was explaining the topic
What was your family doing last July? (travel)
We were traveling
