Үзээрэй

https://www.youtube.com/watch?v=yVAj4PoXqOk    - С.Дөлмандах (open source)
http://www.uefap.com/speaking/symbols/symbols.htm

http://mongolia.smetoolkit.org/mongolia/en/content/en/403/E-Commerce

http://must.edu.mn/mn/content/show/id/5306 

http://www.instructables.com/

Grammar:  
Past tenses    - https://learnenglish.britishcouncil.org/en/english-grammar/verbs/past-tense
    - http://www.grammar.cl/english/past-tense.htm
    - http://www.grammar-monster.com/glossary/past_tense.htm
    - http://linguapress.com/grammar/past-tenses.htm
Present tenses
   - https://en.wikipedia.org/wiki/Present_tense
   - http://learnenglish.britishcouncil.org/en/english-grammar/verbs/present-tense
   - http://www.englishtenses.com/present_tenses
   - http://linguapress.com/grammar/present-tense.htm
   - http://www.grammar-monster.com/glossary/present_tense.htm 
Future tenses
     - https://www.tesol-direct.com/guide-to-english-grammar/future-tenses
     - http://esl.fis.edu/grammar/rules/future.htm
     - http://www.englisch-hilfen.de/en/grammar/future_contrasted.htm 

 


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