_____

_____
　　A.For example, the people in men's dreams are often other men, and the dreams often involve fighting.
　　B.Men and women dream about different things.
　　C.A criminal, for example, might dream about crime.
　　D.However, one thing they agree on this: If you dream that something terrible is going to occur, you shouldn't panic.
　　E.It was only in the twentieth century that people started to study dreams in a scientific way.
　　F.He thought people could learn more about themselves by thinking about their dreams.