---How long each other before they married ? -- -For about a year . A. have they

---How long _______ each other before they ________ married ?

        -- -For about a year .

        A. have they known ; get                    B. did they know ; were going to get

        C. do they know ; are going to get             D. had they known ; got

试题答案

D

解析:

根据句意分析，他们结婚已是过去的事，那末，他们互相了解大约一年的时间肯定发生在结婚前，发生在过去某一动作之前的动作，应该使用过去完成时。