A．He believed that his best ideas came to him in dreams.
B．He regarded dreaming as the strongest proof that human exists.
C．Dreaming supports his contention that reality has many aspects.
D．Dreaming illustrates why human experience of reality cannot always be trusted.

A．They are easier to excavate than other types of archaeological sites.
B．They often provide information about several generations of people.
C．They often contain evidence of trade between different countries.
D．Most of them have been found in what are now desert areas.

A．To point out that Gonur-depe existed earlier than other ancient civilizations.
B．To emphasize that the findings at Gonur-depe are evidence of an ancient civilization.
C．To demonstrate that the findings at these locations have little in common.
D．To suggest that the discovery of Gonur-depe will lead to more research in Egypt.