- the dictionary wordreference: http://www.wordreference.com
- about grammar: http://esl.about.com/od/grammarstructures/a/pres_simple.htm
- more grammar: http://a4esl.org/q/h/lb/psv.html
- about reading with audio :http://www.rong-chang.com/qa2/
Nevertheless, when you want to look for something on the internet you can go to google and click what you want and then add +ESL
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