Phrasal Verbs formed by a verb with either a preposition or an adverb, or sometimes both a preposition and an adverb, are an aspect of English that most foreign learners have difficulty in mastering, because very often they do not express the 'obvious' meanings. To be proficient in English, learners have to master the commonest phrasal verbs explained in this book. 'What You Need to Know about' is and open-ended series of ELT reference books on various aspects of English specially planned for intermediate learners who want to get to grips with English. Covering the most important topics of English, the series aims at helping foreign learners build a solid foundation for the learning of the language.