RuthVioleta

Task:
Lauri's ESL Website - grammar, vocabulary, listening exercises. The Flash ones are especially interesting. 
http://fog.ccsf.edu/~lfried/ 
   I consider this webpage with exercises and activities to practice grammar and functions very useful.
I recommend "Lauri's ESL Website" because it is applicable to students from junior and high school and for begginers and intermediates second language students who need more practice to learn the part of specch and their functions. L2 students can test themselves their approach.
This page shows several grammar points that are basics to create sentences since the articles until to guess the words that best complete a sentence according the tense and function.