企源知识库

如果你早点儿告诉我，我也许已经帮你把问题解决了。
【正确答案】：If you had told me about it earlier, I could have already helped you solve the problem.
【题目解析】：该题考查虚拟语气。本句是对过去进行假设，从句用“had+过去分词”，主句用could have done sth.。