I will pick Chinese and Spanish.

I will pick Chinese and Spanish, for those two are the most well-used languages. First of all, the Chinese language has competitiveness. China\\\'s market has made a meteoric rise in high-tech gadgets. For example, most of the payment systems in China are achieved by QR code. Even though the reason why the Chinese language is the most spoken language is that China has the largest population, the country still has enough competitiveness in terms of the 4th industrial revolution. Second, learning Spanish is essential. If I can speak Spanish fluently, it\\\'s like being able to communicate with everyone in Europe and South America. People from all South American countries except Brazil speak Spanish since they were colonies of Spain. Moreover, languages that are derived from the Roman word are similar to each other. Spanish, French, and Italian are examples of those languages. It means that it is easy for those who speak Spanish to learn other languages in Europe.