hearken - first syllable should be pronounced as "har" (the way "heart" is pronounced), not heer-ken / hear.
listen
honor - should be pronounced as "ho-ner" not "ho-nor".
listen
mediator - should be pronounced as "mee-di-yey-ter" not "mee-dyey-tor".
listen
vitae - should be pronounced as "vee-tie" ( the way we pronounce the "tie" in necktie) not "vee-tey".
listen
mango - should be pronounced as "maeng-gow" not "mang-gow".
listen
cocoa - should be pronounced as "kow-kow" not "ko-kwa" / "ko-ko-wa"; the first syllable should be lengthened.
listen
education - should be pronounced as "eh-joo-kaye-shuhn" and not "eh-doo-kaye-shuhn".
listen
colon - should be pronounced as "kow-luhn" (the first vowel should be "owe" or "oh"; the first syllable should be lengthened).
listen
roll, poll, toll - roll should be pronounced like "role" so it's tootsie role ; poll as pole and not "Paul"; toll as "tOwl" and not "tall".
chocolate - should be pronounced as "chack-luht" not "cho-ko-leyt".
listen
cleanliness - first syllable should be pronounced as "klehn" and not "kleen" "clean".
listen
Thailand - "TH" here is pronounced as "strong t" therefore "h" is silent so correct pronunciation is "Tie-laend" and not "thigh-laend".
listen
shepherd - "ph" in this word should sound as "p", so "h" is silent; correct pronunciation is "sheperd".
listen
Stephen- "ph" should sound as " v".
listen
predicate - correct pronunciation is "preh-duh-kuht" and not "preh-di-kayt"; the first syllable is lengthened.
listen
-----------------------------------------------------------------
Part 2
http://englishrefresher.blogspot.com/2011/11/what-you-should-have-said-part-2.html
Part 3
http://englishrefresher.blogspot.com/2011/11/what-you-should-have-said-part-3.html