今天上课的时候遇到一题句子重组如下：
of / him / tell / kind / to / my / embarrassing / not / anyone / story / .
It was _____________________________________.
我觉得答案是：
It was kind of him to not tell anyone my embarrassing story.
同事觉得是：
It was kind of him not to tell anyone my embarrassing story.
另一个同事觉得两者皆可。
我还是觉得我是对的。用第二种感觉该写成 It was kind of him not telling anyone
my embarrassing story.
哪位前辈可以告诉我假如不是两者皆可，哪个答案是对的？为什么？谢谢！

"not to" is better i think. "not" normally goes beforeinfinitives "to".

to be or not to be,用这句名言记,说不定会轻松点