(2013·河北普通高中高三质量预测)—What courses are you going to learn next term?
—I don't know.But it's about time on something.
A. I'd decide
B. I decided
C. I decide
D. I'm deciding
网友回答
A. I'd decide
(答案→)B. I decided
C. I decide
D. I'm deciding
解析：B 考查虚拟语气。句意：“下学期你打算学习什么课程？”“不知道。不过，是时候我该做决定了。”在“It's(high/about) time＋that从句”结构中，从句的谓语动词通常用一般过去时。