问题
选择题
.When people move to another country, they often try ________ the customs of their native land.
A．to keep on
B．to keep off
C．to keep up
D．keeping up
答案
答案：C
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.When people move to another country, they often try ________ the customs of their native land.
A．to keep on
B．to keep off
C．to keep up
D．keeping up
答案：C