do I have to study grammar to pass TOEFL

In this video I’m interviewing Paul and Rachael from LanguageTrainers.com and we’re looking at the following TOEFL related questions: What TOEFL is all about? Is TOEFL the American counterpart of IELTS? When is TOEFL the right option for you? Is it possible to score a high mark in TOEFL just by improving your overall English…