If only I (know) ______ the answer, I would have told you.had known本句是由if only引起

游客2024-07-19 31

问题 If only I (know) ______ the answer, I would have told you.

选项

答案 had known

解析本句是由if only引起的虚拟语气，表示的是过去的情况，因此要用过去完成时。

转载请注明原文地址:https://www.tihaiku.com/zcyy/3683387.html

相关试题推荐

随机试题

最新回复(0)

IfonlyI(know)______theanswer,Iwouldhavetoldyou.hadknown本句是由ifonly引起