http://funeasyenglish.com/american-english-pronunciation.htm，
Lesson 8 – hat, jam, pan, ran
Lesson 22 – bet, but, bit, beach
Lesson 25 – cot, coat, came, cave
Lesson 24 – den, dip, dime, dial
Lesson 2 – eight, mail, pay, taste
Lesson 27 – front, fast, fan, ferry[@more@]
Lesson 26 – got, goat, game, gave