单选题 "What are you going to study next year?"
"I don't know, but it's time ______ something."
A. I decide B. I decided C. I'll decide D. I'd decide

【正确答案】 B
【答案解析】[解析] 虚拟语气题。it is time that后面要用虚拟语气，从句谓语动词要用过去式或用should加动词原形，但should不可省略。