________?---I was watching TV at home.
________?---I was watching TV at home.
a. What were you doing when it rained.
b. What were you doing while it was raining.
c. What did you do while it was raining.
a. What were you doing when it rained.
b. What were you doing while it was raining.
c. What did you do while it was raining.
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