References
![Image](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibSItGkX8GmeG5ceuoRMlKnc-avhDCEZm767s4WoY24Cg0KkzBOACMeURlJDFJCgsz746tQJm3qghKsQ41kbXnA58opAex5K47EgMmjm5SSsKtSDa_I1TRig__CpiYMDaibYNKBIosxDU/w640-h388/shutterstock_376054714.jpg)
References: English Hints(2021)Short and Long vowels in English. https://www.englishhints.com/english-vowels.html Pronunciation Studio(December,2013) 10 English pronunciation errors by Spanish speaker. https://pronunciationstudio.com/spanish-speakers-english-pronunciation-errors/ English Language and Usage(2016) S-pronunciation at the beginning of a sentence. https://english.stackexchange.com/questions/282408/how-to-correct-improve-s-pronunciation-at-the-beginning-of-a-sentence Brenda. (11 de November de 2020). OxfordHouse . Obtenido de https://oxfordhousebcn.com/en/6-pronunciation-mistakes-spanish-speakers-make-in-english-and-how-to-fix-them/ Noack, K. (26 de Septiembre de 2018). Tongue Twisters From A to Z . Obtenido de https://www.karstennoack.com/tongue-twister-voice-training/