Quarrels took place ________ the two young couple had different ideas.A.in caseB.whereC.in whichD.unless
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B解析句意：争吵是在这对年轻夫妇意见不一的情况下发生的。You use “where”to introduce a clause in which you mention a situation, a stage in something, or an aspect of something. 如：①It's not hard to see where she got her feelings about herself. ②She had a feeling she already knew where this conversation was going to lead.