I did not know it ______ you told me.until 请问为什么不能选择unless.

问题描述:

I did not know it ______ you told me.until 请问为什么不能选择unless.
I did not know it ______ you told me.
until
请问为什么不能选择unless.
如果填unless,是不是可以翻译成“如果你不告诉我,我不知道这件事”

如果用unless时态不对.unless意思就等于if not,所以句子会变为I wouldn't know it unless you told me.或者I wouldn't know it if you had not told me.因为你已经告诉我了,而现在是假设没有告诉我,所以用虚拟语气