How to improve pronounciation in short time?
I have two Vietnamese students in my class who badly need to improve their pronunciation. The students are19 and 22 and have quite a good grasp of grammar, but their speech is very…very unclear. They have serious difficulties producing consonants like x, sh, th. They say it is very difficult for them to pronounce ch and dj, etc.
I would like to help them and volunteer some time, probably up to 4 hours. As there is a lot to teach and practice in both cases, I was wondering if you have any suggestions. What should I focus on during my limited time and what should I leave for their homework?
Thank you very much