单项选择题
When people move to anothercountry, they often try the customs of their native land .
A style='font-size:14px'Times New Roman','serif''>. style='font-size:14px'Times New Roman','serif''>keepingon B style='font-size:14px'Times New Roman','serif''>. style='font-size:14px'Times New Roman','serif''>to keep off C style='font-size:14px'Times New Roman','serif''>. style='font-size:14px'Times New Roman','serif''>to keep up D style='font-size:14px'Times New Roman','serif''>. style='font-size:14px'Times New Roman','serif''>keeping up