Previous studies on hesitation strategies used by beginner or advanced L2 learners revealed that beginners mostly leave their hesitation pauses unfilled which causes their speech to sound disfluent, and advanced learners tend to use various fillers in order to sound like native speakers. The present paper reports on a study which investigated the…

English as a tool of communication has been playing an important part in acquiring cultural, scientific and technical knowledge, for collecting worldwide information and carrying out international exchange and cooperation. Improving college students' oral English level has become more and more important. Based on Richard E. Mayer's theory of…