• In the following question, Fortson uses slightly different terminology (truth to tell, he's probably more precise than I) than I am used to: find the answer I consider correct here: http://www.uvm.edu/~jbailly/courses/Indo-European/greekMeterNotes.html
  
• 11 (or perhaps 12) Greek poetic meter is structured around syllables that are:
0. Long/light
1. Long/short
2. Long/Heavy
3. Long/stressed

Indic:

• In the following question, the 3rd option should be -i, not -l.
  
• 1. Word-final PIE laryngeals became what in Sanskrit?
  0. they disappear with not trace
  1. they turn into -a
  2. They turn into -l
  3. They turn into a glottal stop

Germanic Questions

• 
  
• The following question's answers have problems that are not Corynne's fault: fix it when you find the right answer.
  
• 14 or perhaps 15: In Grimm II… (C. Stollerman) 
0. Nasals were eliminated and replaced with compensatory lengthening
1. Voiceless stops turned into voiceless fricatives
2. Aspirates disappeared
3. Voiced stops turned into voiced fricatives
   

Germanic Exercises 3e dewk- > tow, tug, etc.

I would approach it from both ends of Wiktionary as well as use Fortson: first, look at *dewk- in Wiktionary (not always easy to get to that: if you can’t, try tracking back from a descendant). Once you find the PIE root, look around and see the descendants such as tug, tow, zug, etc., and then look up each of the descendants. Click around to see how things developed from PIE to PGmc to …

 That should give you an idea of the paths you are trying to explain each step of.

Then look in Fortson for ways to explain each form or change.