Question

【题目】Have you ever asked her the reason _______ may explain her absence?

A.whyB.whenC.whatD.that

Answer 1

【答案】D

【解析】

句意：你问过她缺席的原因吗？

考查定语从句的关系词。本句定语从句的先行词reason物，关系词在定语从句中做主语，可知使用关系代词which或that；故选D。