A．Traditions in English speaking countries.
B．Characteristics of American people.
C．The humor of British people.
D．Differences between Americans and Britons.

A．changed
B．computing
C．consider
D．demand
E．desire
F．impressive
G．increasingly
H．incredibly
I．interacts
J．persist
K．plagued
L．recovered
M．resolution
N．settlement
O．various