Families on the large farms kept in touch with each other by ______.

A．Most of Australia is too dry for people to live in and it is the same with the USA.
B．Some of the Australian farms are very large.
C．The people on the farms don’t have neighbors because they live far away from each other.
D．The Australian children don't like to go to school at all.

A．Different people have different ideas about dreams.
B．Different dreams have different meanings.
C．People can only have their dreams studied when they are sleeping.
D．People only have dreams when they are sick.