要理由How many times __________ not to do that?A.I told you B.have I told you
问题描述：
要理由How many times __________ not to do that?A.I told you B.have I told you
答
这里是考察现在完成时的被动语态
【现在完成时的被动语态的特殊疑问句】为：疑问词 + have / has + been + done.
如：
How long have the machine been repaired?这些机器已被修好多长时间了?
Who has been invited?谁受到了邀请?
How long has the project been carried out?这项工程已被实施多长时间了?
这里属于上述情况,那如果前面是it is the third time __________ not to do that.是不是A就可以了？是的，不过还要在I之前加that构成强调句型，希望再次帮助到你！