第1个回答 2013-09-10
It was only then did I realize the importance of English.
第2个回答 2013-09-10
I haven't realized the importance of English untill that time.
否+否=肯定
希望采纳哦O(∩_∩)O~
第3个回答 2013-09-10
It was not until then did I realize the importance of English.
第4个回答 2013-09-10
直到那时我才意识到英语的重要性
【Not until that time did I realize the importance of English】