The Ministry of Higher and secondary education of the Republic of Uzbekistan The Uzbekistan state World Languages University

Internet sources:

1. 
   www.google.uz
   
2. 
   www.search.com
   
3. 
   www.vikipedia.com
   
4. 
   www.yandex.ru
   

1^ Nunan 2003.

2^ Cameron 2001

3^ Chaney 1998, 13

4^ Harmer 2001, 271

5^ Brown (2004)

6^ Vilar (2003)

7^ Harmer 2007, pp. 58-59

8^ Freeman 1994, p. 153

9^ Mc Cafferty et al, 2006, p. 21