Answered By: Writing Center Last Updated: Nov 05, 2015 Views: 0
We use as only if two things happen at the same time. We use when if one thing happens after another.
e.g.: When I got home, I had a bath.
As I walked into the room, the phone started ringing.
We use as for actions and happenings. As + a situation usually means because.
e.g.: As we were asleep, we didn't hear the doorbell.
You cannot use as for time in sentences like this. You have to use while or when.
e.g.: The doorbell rang while we were asleep.
She got married when she was 23.
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