单选题 You're always moaning about something or other. I wish you ______.
A. shut up B. were shut up C. had shut up D. would shut up

【正确答案】 D
【答案解析】Wish要求其宾语从句用虚拟语气。对没有发生的事表示愿望，从句的谓语用过去将来式。选项D是正确的。