It took seven years they finally got married. A. sinceB. afterC. beforeD. when

问题补充：

It took seven years they finally got married. →A. since→B. after→C. before→D. when

答案：

→A. since→B. after→C. before→D. when

从开始到他们最终结婚花了七年，换言之，在结婚之前（before they got married），他们一起有7年。