Because most of the students listen to the accent is not clear. Incorrect pronunciation, etc, because English is one language that is necessary. In a speech to communicate with foreigners.
Because most students do not listen to the voice clear. Pronounced incorrectly or because English is a language that is very necessary. To speak with foreigners.
Since most students listen to accent is unclear, pronounced incorrectly, etc., because English is one language is necessary. In speech communication with foreigners.