I have a treat for you: an updated version of this 20-year-old site.

Video lessons & Audio quizzes
evaeaston.com

Audio Quizzes
Linking
Reduction
Word Final -ED
Word Final -S
Wonder Words

Consonant Sound Pair
Voiceless /f/ & Voiced /v/

Quizzes

Homophones

Listening Quiz /f, v/
Randall S. Davis

Minimal Pairs
f-v
Charles I. Kelly

Minimal Pairs
b-v
Charles I. Kelly