The discovery ... set ... wondering ... set sb doing sth
Receiving ..., he ... He was the person who had received the news.Turning ..., you ... You are the one who does the turning.She ... of there being ... A noun or -ing form is needed here after a preposition.The secretary ... and said, "... called." You are the guy to be called.Most ... spoken ... The Chinese (that is) spokenEverything being equal, ... = If everything is equal