I didn't know his telephone number

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/07/31 08:45:42

I didn't know his telephone number
A.Had I known; would ring him up
B.Should I know ;would have ring him up
C.If I knew ;would ring him up
D.Had I know; would have rung him up
请问这道题的选项为什么是D?

答案是 Had I known,I would have rung him up
原句 D 好像写错了,
如果 D 的形式是 Had I known,I would have rung him up
选 D .
Had I known = If I had known
是倒装,表示虚拟语气
I would have rung him up
过去将来完成时,配合主句的时态
提示：Had I known ...I would have ...
是固定搭配.
再问： Had I known ... I would have....是什么意思
再答： Had I known ... I would have.... 是句子的格式比如 Had I known you were coming, I would have waited for you Had I known it was going to rain, I would have brought an umbrella

I didn't know his telephone number 英语语法：虚拟语气I didn't know his telephone number.____ it,I ____ t 虚拟语气 i didn't know his telephone number.____ it,I ______ the I know his telephone number We didn't know his telephone number, otherwise we ___ him. 1.We didn't know his telephone number,otherwise we _____ him We didn't know his telephone number,otherwise we ___ him We didn't know his telephone number, otherwise we would have 有关虚拟语气We didn't know his telephone number,otherwise we_____h I don'd know A,how many his telephone number B,what is his t I _______ don't know his telephone number.A.real B.really I Know his telephone number改成一般疑问句