Here's why:
* The vowel sound in "please" is a short "e" sound. It's similar to the vowel sound in words like "bed," "pen," or "let."
* Long vowels are typically marked by a single vowel followed by a silent "e" at the end of a word. This isn't the case in "please," where the "e" is pronounced.
Let me know if you have any other questions about vowel sounds!