When the presidential election had just ended, the testosterone level of the supporters for John McCain______.

A．She has already started working on her research project.
B．She can’t decide which to choose about the research topic.
C．She would like to discuss her research with the man.
D．She has to change the subject of her research.

A．he didn’t try his best to play tennis
B．he gave his opponent too many chances
C．he didn’t master the basic techniques
D．he always tried to play perfectly