Linda felt someone ________ on her way home from work yesterday evening, and therefore she was frightened and looked back from time to time.
I was about to go out ______ the telephone rang.
We were swimming in the lake _______ the storm started.
She was walking down the road _______ she heard someone shouting for help.
The fire went on for quite some time _______ it was brought under control.
He made a mistake, but then he corrected the situation _______ it got worse.