this is the best hour i can I in the past twelve years .A know , have had B remember ,had C think of, have had D think out ,had附上理由

this is the best hour i can I in the past twelve years .
A know , have had B remember ,had C think of, have had D think out ,had
附上理由

选C
这是我能想起来的在过去12年中最快乐的时光
in the past XXX years就是提示你用完成时,所以排除B 和D
一般不会说I can know最多有说i know的