[题目] He wrote a letter he explained what had happened in the accident.A. what B. which C. where D. how 题目和参考答案——青夏教育精英家教网—

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【题目】 He wrote a letter ______ he explained what had happened in the accident.

A. what B. which C. where D. how

【答案】C

【解析】试题分析：句意：他写了一封信，在信中他解释了事故中发生的一切。a letter是先行词，从句本身主(he )--谓(explains )--宾(what had happened in the accident)成分齐全，缺少的是地点状语。可知使用关系副词where.故选C。

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