In another year or so, you ______ all about it.

In another year or so, you ______ all about it.
A、would forget
B、forget
C、have forgotten
D、will have forgotten
【正确答案】：D
【题目解析】：因为有个时间状语In another year or so，得用将来时，所以D（将来完成时）最合适大约过个一年，你就已经全忘记（这件事）了。