In schools all over the world, boys and girls are learning foreign languages. Everyone knows his own language, but another one is very useful especially(尤其) when you travel to other countries. If you go to France, you should be able to speak French, and in Germany, people will expect you to understand German. How many languages are there in the world? There are about fifty hundred, but a lot of them are not very important. English is one of the most important because so many people use it, not only in England and America but also in other parts of the world. About 200,000,000 people speak it as a second language. It is difficult to say how many people are learning it. Many millions of schoolboys and schoolgirls are trying to do so. 1. Learning foreign languages is very useful.