Questions 19 to 22 are based on the conversation you have just heard.

A．Because he was famous for his view to keep the Union by force.
B．Because he was famous for his anti-slavery views.
C．Because be was famous for his democratic views.
D．Because he was famous for his view to develop economy.

A．To lower their exchange rates.
B．To regulate their exchange rates.
C．To raise their regulated rates.
D．To make no change of their rates.