From now on I’m going to cover up phrasal verbs. Because this has a much of use in Listening, and so does in speaking and writing of toefl (iBT). And I have decided to take toefl (iBT) for its easier registration.
Turn back: Jack no matter what happens here I want you to keep moving for that radio tower. Don’t turn back for any reason.
Call off: The Football Association called off the match between England and Greece because of bad weather.