[originaltext]W: I really can’t stand the way David controls the conversation a

W: I really can’t stand the way David controls the conversation all the time. If he’s going to be at the Christmas party, I just won’t come.
M: I’m sorry you feel that way. But my mother insists that he come.
Q: Why is David being invited to the party?

W：You look upset．Anything wrong?
M：I failed in the physics exam again in spite of all the efforts I made．
Q：What do we know about the man from the conversation?