<p>I think that first of all you must read and work on theory. And then you may take Practice Tests. If U have no time you may do only P.T, but it will impove only you speed of doing questions, you won’t learn something new, you should review mistakes to gather something better, but it’s better to learn all theory and make sure that you know every fact, every detail, and then take P.T.
Thanks.
Suleyman.H.</p>