填空:it's no good [ ](cry)over split milk.

有一个固定搭配，It's no good doing sth.所以这里填crying，不是翻译为做某事没好处，而是＜做某事没必要＞也等同于It's no use doing…。

It is no good crying over spilt milk.
直译:为打翻的牛奶哭泣没有用.(习语:覆水难收)
从语法角度说,it作形式主语时常用来指代to do sth或从句,所以It is + adj./n. + to do sth很常见;但下面这几个结构是特殊的,是用it指代了doing sth
It is no use doing sth.做某事没有用.
It is no good doing sth.做某事没有好处.
It is a waste of time doing sth.做某事是浪费时间.
所以要填crying

大家都已经给你答案了
是TO
it's no good to cry over split milk.

it's no good [to cry ](cry)over split milk.
词组it's no good to do sth

Itisnousedoingsomething.所以上面的答案有错的.注意哦

it's no good [crying] over split milk.
我认为应该用crying而不是to cry，因为是milk前面有过去分词，同时习语语意是表示‘覆水难收’。

it's no good [crying] over split milk.
正确答案应该是crying而不是to cry吧

crying