What has the prior speaker just pointed out? He has just pointed out the importance of ______.

Ladies and Gentlemen,
   The last speaker pointed out the importance of improving your English. So then, how should we improve it? Here are a few ideas:
   First, listen more. Since English differs greatly from Chinese in pronunciation and intonation, we should improve our listening comprehension by listening to our teachers in class, and after class, we can turn on the radio and listen to BBC or VOA. If the programs are not on the air, we can listen to Enlgish tapes.
   Second, read more. Reading involves our recognition of the language symbols in the written form. In reading, we can train our eyes to take in the symbols and our brains to understand the meaning of each word, the meaning of each sentence and the theme of the whole text.
   Third, speak more. Although knowledge of a language is important, it does not improve our speaking ability. Our speaking performance can only be improved if you speak English to your classmates and English teachers daily.
   To sum up, "Practice makes perfect". Only through practice can you master a language.
Q11. What has the prior speaker just pointed out?