A．culture.
B．gender.
C．formality.
D．circumstance.

A．show their gratitude to others.
B．behave themselves well.
C．continue their acts of kindness.
D．stop worrying about bad manners.

单选题 根据下面的内容，回答题.


We learn from the first paragraph that the recession

A．affected Americans in certain occupations.
B．is over with some of the losses recovered.
C．had only brought huge losses in savings and stocks.
D．had great impact on Americans' work and life.