It’s too bad that I failed in the math exam. If only I hard at it! A. worked B.
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It’s too bad that I failed in the math exam. If only I ______ hard at it!
A. worked B. had worked C. has worked D. would work
试题答案
B 考查虚拟语气。题意“我数学考试不及格真是太糟糕了，要是我之前努力学习就好了”。if only后面的从句中要用虚拟语气，从语境可知此处是对过去情况的一种虚拟，所以谓语动词要用过去完成时。故选B。