题目内容
【题目】It was the first occasion ______ they had both found it possible to reach an agreement.
A. whyB. when
C. whichD. how
【答案】B
【解析】
考查定语从句。句意:这是他们两人第一次发现他们有可能达成协议。分析句结构可知,此处为定语从句,先行词为the first occasion,指时间,从句缺少时间状语,故B项正确。
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