No matter how each person will use the language as a national language. When you want to communicate with people as opposed to traditional language, everyone will need to use English as the primary address.
Whether it off we can use as a national language. To connect with a different language, different culture, everyone needs to use English as the primary anyway.
Whether the people will use the language is the national language. When dealing with people of different languages in different culture all need to use English as the main course.