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 /t/ & Voiced /d/

Pattern

End of a Word

At the end of a word, /t/ doesn't have a puff of air.
Difference: the vowel sound before /t/ is shorter than the vowel sound after /d/.