they need to be able pronounce phonemes correctly and appropriate stress and intonation. Pronunciations of students need to be good enough to communicate the message so that it is understood by other speakers of English. Therefore, most Asian adult students have difficulties to pronounce words or sentences correctly which can be a major cause of misunderstandings. They have difficulties in recognize sound of English, word stress( which part of a word are more heavily stressed that is spoken louder and longer), sentence stress( which part of a sentence can be more heavily stressed), sounds in connected speech( how to link the sounds together in a sentence),and finally in intonation(how our voice rises and falls at a certain point of the sentence).From my own experience as a teacher in a secondary school, most students have potential pronunciation problems when they speak English. They have problem with stress and intonation that they unable to put the right emphasis on the right part of the word. Also they have problems with vowels bends and consonants blends as well. For example, sounds like"ea" and "ou" can be confusing them because when they listen to the audio recordings, it can be very difficult for them to pick up the subtle blends of two or more vowels. Additionally, In consonants blends, they have problem with "th" sound because they are not accustomed to putting "t" and "h" together to form "th" sound to reproduce.