I was sleeping when/while he called.
when
While/When you were reading, she knocked on the door.
While
While/When I arrived, he was working.
When
I interrupted her when/while she was studying.
while
I was listening to rock music while/when I was meditating
while
I was breathing deeply while/when I was singing.
while
I was cleaning when/while she came to my house.
when
While/When I was going to school, I saw a car accident.
While
I was watching TV when/while the phone rang.
when
He was playing game when/while his mom called him.
when
My sister was eating a salad when/while I was working.
while
I was playing basketball when/while I heard a strange noise.
when
George was going to the party while/when he met Tom.
when
Alice was climbing a tree when/which she saw a the bear.
when
While/When it was raining, they went out for a walk.
While
When/while I cleaned the road, it was snowing.
When
