wonder if you have something more challenging.

[Phamthuhong]

thank you very much for your super useful lessons.however, i wonder if you have something more challenging.

[Beeesneees]

Welcome to the forums, Phamthuhong.

Here are some starting points - please explore them and find an appropriate level of study for yourself. You can work through any of the tests in any order. As long as you are logged in your progress report will save your results.
http://www.english-test.net/
http://www.english-test.net/esl/english-grammar-test.html
http://www.english-test.net/toeic/listening/autobahn.html
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Cheers m' dears!