______ where to have a picnic

【题目】______ where to have a picnic for several days，the big family finally made a decision.

A. Discussed    B. Discussing

C. To discuss    D. Having discussed

【答案】D

【解析】

考查非谓语动词。句意：讨论了几天去哪里野餐，一大家子最终做出了决定。句中逻辑主语the big family与discuss之间为主动关系，且动作discuss发生在主句动作made a decision之前，故用having discussed。故选D。