English - by number of countries, Chinese by number of speakers.
The mostly used Language is Chinese
Yes, English is one of the most widely spoken languages in the world and serves as a global lingua franca in many contexts such as business, science, and travel. It is estimated that over 1.5 billion people speak English to some level of competence.
English since it is the first or second language for most people.
The Englisha language is one of the most used language in the world. It is now considered as the language of communication for the whole world.
English
English is the most spoken language in the world and used for communication.
Mandarin Chinese is the most spoken language in the world based on the number of native speakers.
English is the most widely used second language in the world. It is an official or widely spoken language in many countries, and is commonly used as a lingua franca for international communication in business, tourism, and diplomacy.
Mandarin ChineseEnglish is second
The most commonly used language in the world is Mandarin Chinese, with over a billion native speakers.
Mandarin has the most number of native speakers, but English is the most widely used langague in the world.
C++ or Java probably