In order to know a foreign language thoroughly, four things are necessary. Firstly, we must understand the language when we hear ___1___ spoken. Secondly, we must be able to speak it correctly with confidence and without hesitation._____2___, we must be able to read the language, and fourthly, we must be able to write it. We must be able to make sentences that are grammatically correct. There is no easy way to success ___3____ language learning. ____4____ good memory is of great help, but it is not enough only _____5____ (memorize) rules from a grammar book. It is not much use learning by heart long list of words and ___6____meaning, studying the dictionary and so on. We must learn by using the language. ___7___we are satisfied with only a few rules we have memorized, we are not really learning the language. “Learn through use” is a good piece of __8____ (advise) for those _____9____are studying a new language. Practice is important. We must practice speaking and ____10____ (write) the language whenever we can.