以下哪个句子是正确的？

第一个是正确的，you后面不能接to
有个短语是help sb with sth.
呵呵，绝对正确.

因为是固定搭配，这是短语！

祝你新年快乐哦朋友！

B

It's very kind of sb. to do sth.

固定搭配 记住就行了

B
It's adj. of sb. to do sth.

B

B It's very kind of you to help me with my English.

A可以改成It's very kind of you helping me with my English.

按照最原始的说法应给是"To help me is very kind of you."
但是 一般来说 不定式(to do)作主语的时候 要用it 作形式主语 避免句子出现头重脚轻的现象(就是主语太长) 这也是一个语法知识点 所以 "It’s very kind of you to help me"是正确的