题目

题型：不详难度：来源：

The reason _______ he was late again was that he was caught in a traffic jam.

A．which

B．in which

C．for which

D．of which

答案

C

解析

试题分析：句意：他再次迟到的原因是他被困在了交通堵塞中。通过分析句子结构，可知这个句子中包含一个定语从句，表示原因，用介词for，选C。