It ______ that Tokyo will be the host city for the 2020 Summer Olympic Games.
—I’m terribly sorry, Lucy.I’ve left your notebook at home. —_____? I reminded you last night.
_____ we have finished the course, we shall start doing more revision work.
I’ll never forget the days ______ I spent on the farm.
I meant to help him . ______, he didn’t accept my offer.
Several months later, he found his deskmate very difficult _______.