BACCALAUREATE EXAM EXERCISES
TIME EXPRESSIONS / SIGNAL WORDS
PAST CONTINUOUS
was / were v + -ing
when
while
Used with when to express past activity in progress, interrupted by a non-continuous activity: I was writing when you called.
Used with while to express two continuous activities occurring
at the same time in past: I was reading while you were writing.
When she came back home from work, the children were sleeping.
She came back home from work while the children were sleeping.
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