21. The materials and tools available to help you with your language studies

range      .

22. The appropriate use of these materials and courses will enable you to learn language      .

23. Larger dictionaries will provide the learners with      .

24. The traditional courses are designed for      .

25. With audio courses , you can learn      .

 

A. more definitions, examples of usage, and information about pronunciation, and grammar

B. authentic pronunciation and a manageable amount of vocabulary

C. phrasebooks, dictionaries, videos, games and provide online and/ or telephone support

D. from dictionaries to language courses

E. in a much easier and more effective way

F. beginners or people with only a little knowledge of the language

下面的短文有10处空白，每处空白后的括号内有一个词,请根据短文内容将其正确的形式填入文中,以恢复文章原貌。

This passage is mainly about      .(  )

• A、the difference between national income and GNP
• B、the difference between national income and personal income
• C、the concept of income
• D、the difference between disposable income and nondisposable income