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piano:
She just walked away
Why didn't she tell me
And where do I go tonight
This isn't happening to me
This can't be happening to me
She didn't say a word
Just walked away

Em            Hm
You were the first to say
              C
That we were not okay
Em                     C
You were the first to lie
 C                D
When we were not alright
Em                   Hm
This was my first love
                 C
She was the first to go
D             Em
And when she left me for you
C          D
I was the last to know

verse: piano

Why didn't she tell me
Where to go tonight
She didn't say a word
She just walked away



Em            Hm
You were the first to say
              C
That we were not okay
Em                     C
You were the first to lie
C                    D
When we were not alright
Em                   Hm
This was my first love
                 C
She was the first to go
D             Em
And when she left me for you
C          D
I was the last to know




now starts the electric part

D            Em       
I'll be the first to say
C        D
That now I'm okay
D           Em
And for the first time
C           D
I've opened up my eyes
Em           Hm
This was my worst love
              C
You'll be the first to go
D             Em
And when she leaves you for dead
C              D
You'll be the last to know

Em            Hm       
I'll be the first to say
       C
That now I'm okay
D           Em
And for the first time
C           D
I've opened up my eyes
Em           Hm
This was my worst love
              C
You'll be the first to go
D             Em
And when she leaves you for dead
C              D
You'll be the last to know


...

Всё с гугла 
http://www.google.ru/search?q=Three+Days+Grace+-+Last+To+Know+gtp&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:ru:official&client=firefox

http://tabs.ultimate-guitar.com/t/three_days_grace/last_to_know_intro_guitar_pro.htm товарищи, это максимум, что можно найти, дальше сами))