Two nice sites where you can practise your English

Check out this nice site, if you want to improve your English: ESL, English Grammar Exercises, Video lessons,Quizzes, Vocabulary Exercises

For example this one:ESL Bathroom Vocabulary Video lesson, Bathroom Objects, Bathtub

Another nice site is Free English Grammar, Vocabulary Exercises,Printable worksheets, Interactive Online Exercises . Where you can for example practise your use of prepositions. It looks like a great site.