A．They were allowed to immigrate to America freely．
B．They were granted equal opportunities．
C．They could live a happy life in the country．
D．They could get higher wages in America．

A．It is unreal and not accurate．
B．It exists in people's life．
C．It is the most important part in life．
D．It sometimes hides away from view．

A．Vocal information has a larger impact on mind．
B．People tend to be more honest to themselves．
C．It is more time-saving than talking with others．
D．People feel more relaxed when being alone．