Post gre, toefl reading passages you will find easy. Listening is the most scoring section on toefl-ensure that you listen to as many audios and practice well. Speaking you will need to practise with a tutor. 2nd Writing section of toefl is similar to gre issue topic of essay. It's about your personal opinion. You should solve all barrons 7 toefl tests and 3 ets toefl tests.