31. The cheering went on for quite some time _____ it died down and people took their seats again.
—Bruce, we are taking a ship trip to Australia tomorrow. —That sounds exciting. _______.
He changed so much that I didn’t _______ him at first sight.
Do you know when ________?
I don’t think she is a nice woman;I’m ______ her empty talk.
____ you promise to buy her a gift, you can’t break it in any case.