In the（）half of the 18th century those cities became even more prosperous.

单项选择题From the passage, we may find the purpose of a memo is usually found in the（）. paragraph.

A．second
B．last
C．middle of the
D．opening

单项选择题The purpose statement of a memo gives your（）it and forecasts what is in the rest of the memo.

A．reason for writing
B．reason for thinking
C．information to memory
D．information to remember