-----Is it good to look up every new word when I come across it in reading?-----No. You _______ because you are likely to guess the meaning from the context.
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.