[HUE]

I decided to put together a few lessons on pronunciation and intonation for my site, and need everyone's comments/advice. I've only taught Japanese learners of English, and so am very familiar with their problem areas in speaking. But what is it like with other learners? Specifically:

1. Are there specific sounds difficult to pronounce because of the learner's L1?

2. Are there sound pairs that cause problems? For example, Japanese people have a lot of trouble with "b" and "v," or "l" and "r."

Any answers are very much appreciated!

Thank you.