问题
选择题
People in Korea and Japan are supposed to bow when they meet the first time.
A．on
B．in
C．during
D．for
答案
答案：D
题目分析：句意：在韩国和日本，人们初次见面时应该鞠躬。On在……上；in在……里；during在……期间；for为。表示第几次习惯用介词for，所以选D。
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