October 1st is the day ____my brother joined the army.选A.which B.that C.when D.in which 为什么?
问题描述：
October 1st is the day ____my brother joined the army.选A.which B.that C.when D.in which 为什么?
答
October 1st is the day ____my brother joined the army.选A.which B.that C.when D.in which 为什么?
前面是时间October 1st以及the day,明显此句是时间状语从句,应该选C.when
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