Is it OK if I leave now?

我现在离开，可以吗？

《牛津词典》

Is it OK if I post you the cheque next week?

我下周寄给你支票可以吗？

《牛津词典》

Is it ok if I bring that one by in a couple of days?

我过几天再把那样东西带来可以吗？

youdao

People still look at you weird, but it's like, 'All right,he's disabled now, but it's kind of OK now.'" Matthew Sapolin is commissioner of the Mayor's Office for People with Disabilities, and he is blind.

VOA: special.2010.07.28

And you express that "I'm feeling this way, is it ok?"

你可以表达“我有这样子的感觉，没问题吧？”

I can't help but 课堂 - SpeakingMax英语口语达人

The syntax is OK in the sense of, it is an operand, an operator, an operand, so syntactically it's OK.

这里的语法应该是好的，有个运算对象，一个运算符，另外一个运算对象，因此语法上是没错的。

麻省理工公开课 - 计算机科学及编程导论课程节选

When is it OK to pitch a story idea via a Twitter direct message?

FORBES: Oh, That Test!

For example: When is it OK to share something rad I just found online?

CNN: Bad at sharing? Try these 3 social networks

But if you want to quit your job and follow your dreams to travel the world, is it OK to ask others to pay?

BBC: The ethics of asking strangers to pay