The purposes of this paper are to report the English proficiency of Korean university students through TOEIC test, and to suggest feasible ways to improve their communicative competence. A total of one thousand and forty-two sophomore students who took the Practical English course participated in this study. The data based on TOEIC scores were analyzed and the major findings revealed that: (1) Although students had slightly higher scores on the written language sections than on the spoken language parts, they had the lowest scores in the grammar section; (2) The total listening comprehension scores were significantly correlated with the total reading scores; (3) There was a high positive correlation between students’ proficiency level and their scores; (4) Multiple regression analysis showed that part 3 (short conversations) influenced significantly on the total listening part, while part 6 (grammar) had a significant effect on the total reading part. In conclusion, these findings contribute to the emerging picture of what constitutes a successful language learner by proposing a more refined model based on Willis’. In conclusion, the results of this study offer several suggestions for language teaching professionals as providers of effective instruction of communication strategies for enhancing the development of communicative competence.