Many attempts are currently being made to develop Aural-Oral Communicative skills in English at school level, but it remains a difficult task for the teachers of English. There are a lot of readymade cassettes available in the market but they have hardly served the purpose. Admittedly, cassettes help and yield better results for learners, subject to teacher's competence to utilize them. English is a foreign language for Yemeni students at all levels: preparatory, secondary and tertiary. It is considered as a difficult subject due to the mother tongue interference. But the optimum use of audio cassettes developed by the teachers will help to achieve the desired results. In the present study, the basic skills were taken as tasks and simple tests were administered on the students, who start learning English at the age of eleven. Their mother tongue interference is deep-rooted and so they have difficulties in learning English.