It is the in Britain that young people often do not shake hands when they meet someone for the first time.
A. custom
B. habit
C. hobby
D. favour
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(答案→)A. custom
B. habit
C. hobby
D. favour
解析：
这题考查词义辨析：custom风俗，B. habit习惯，C. hobby兴趣，D. favour偏爱，恩惠，句意是：在英国年轻人和别人第一次见面时不握手这是风俗。选A。