In order to develop effective teaching methods and computer-assisted language teaching systems for learners of English as a foreign language who need to study the basic linguistic competences for writing, pronunciation, reading, and listening, it is necessary to first investigate which vocabulary and grammar they have or have not yet learned.…

Although programs for teaching and testing of English as a second language (ESL) are often evaluated for their attention to communicative competence, there is no consensus on the nature of the communicative competence construct(s) and little empirical support for the various explanatory models. The theoretical literature related to communicative…