If you have a problem, ask the invigilator.

有问题就问监考人。

《牛津词典》

If you have a problem with the law, take it up with your legislators.

如果你有法律问题，去找你们的立法员讨论如何处理。

《柯林斯英汉双解大词典》

Do you have a problem with impulse spending?

你是否有过冲动消费？

youdao

There was nothing I could do. When you have this kind of a problem, you can only take care of your body.

VOA: special.2010.08.09

She is the head TA and she's the one you should write to whenever you have a problem.

她是首席助教,只要你有疑问,都可以给她发邮件

耶鲁公开课 - 基础物理课程节选

because I'm sure you have a problem in your country as well.

因为你们国家肯定也有此类问题。

关于世界地球日 - SpeakingMax英语口语达人

Holly Liu: As with anything, the first step to recovering is admitting you have a problem.

FORBES: Kabam Co-Founder Holly Liu Talks Early Startup Failures

After all, when you have a problem of this size you are bound to have litigation.

FORBES: Y2K fear merchants

When you have boards telling management how to run the company, then you have a problem.

WSJ: Ex-CEO Greenberg: Don't blame me for AIG failure