You are generally not allowed to speak anything but English in the workplace, because it's considered rude and counterproductive. It is similar to whispering in front of someone.
If you don't live in the country you are talking about it is a foreign place and they speak a foreign language.
If you do not speak Kurdish, then, yes. However, the term "foreign" part of foreign language is relative. If you are a native Kurdish speaker, then English is the foreign language.
does steven spielberg speak any foreign language
Hitler didn't speak any foreign language.
It is not illegal to speak Spanish in a workplace. There may be requirements to use a specific language for some transaction, like air traffic control.
It is legal to regulate speech at work. At a workplace, unless everyone speaks the same languages, it is rude and counterproductive to use a foreign language in front of others who can't understand.
Only if they learn it as a foreign language.
You can get a translator to translate their language into yours.
The foreign language that Erle Stanley Gardner spoke was fluent chinese.
There is no such language as "alien". It's like wanting to know how to speak "foreign".
English would be the best language to speak, since you probably can't speak Khmer. English is the most widely spoken foreign language in Cambodia.
No, it is not illegal to speak Punjabi in an English workplace in the UK. However, employers can set language policies relating to business operations and communication to ensure smooth functioning of the workplace. It is important to follow these policies while at work.