To use English as the medium language for communication in AEC but the poorest people speak English not to occur in the communication. Negotiation and some countries have different dialects, it is a problem in communication.
Use English as a common language to communicate in AEC, but people who do not speak English well. To problems in communication Negotiation And some countries have different accents. It is a problem of communication.
To use English as a lingua franca for communication in AEC and the poor can't speak English. There will be trouble communication, negotiation, and some countries have a different accent It is a problem in communication cable.