professional development - fondamentos step 1.3 - video lesson segment 2 If you are human, leave this field blank. PRIVACY STATEMENT Your personally-identifying information and e-mail will only be used to document your work, and they will never be shared or disclosed in any way. I have finished watching segment 2 of this video lesson. no yes Section My unique ID is... always use the same unique ID... if you have forgotten, you can check your e-mail My e-mail is... a copy of your responses will be sent to you for your documentation My first name is... My last name is... Try to give a brief and helpful explanation of vowels that a beginner would understand. How common are diphthongs in Spanish? very rare somewhat rare somewhat common very common Do you have any comments, suggestions, or questions about this segment?