It's a good way to learn english and for gmat exam, but not really for Toefl exam taker only. Because Toefl is base on spoken english, so there is always some differences. Just like SC of gmat is not the same as the grammar of toefl. My suggestion is if you want to take Toefl exam only, stick only in toefl readings, if you need to take both of them, take gmat first then toefl, but you still need to practice how does toefl question in reading section and grammar section even you have fully understanding of the lecture. |