问题
选择题
The reason _______ he was late again was that he was caught in a traffic jam in the rush hour.
A．which
B．in which
C．for which
D．of which
答案
答案：C
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The reason _______ he was late again was that he was caught in a traffic jam in the rush hour.
A．which
B．in which
C．for which
D．of which
答案：C