Hi, here's simple 4 step plan for you to speak English like a native using Italki.
1.Click onto language Index in the top right hand corner.
2.Click onto English, then your language.
3.Click onto Knowledge.
4.Click onto;How to learn English as a native speaker. Good luck!

haha, fakeyellowlight's one is great... but if you want to sound formal then.

If you had been quieter, the teacher wouldn't have scolded you

Hola ,
Se dice :
If you were more quiet , your professor wouldn't have scolded you ( OR wouldn't have told you off )