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