What I've called Em7/G is similar to the open G shape, the notes being G, (A muted), E, G, D, E.
What I've done below is the best I can for a song that was designed for piano and not guitar.
Verse 1:
Em7/G Dm7/C
Where did your long hair go
Em7/G Dm7/C
Where is the girl I used to know
Em7/G Gm7 Gm7/C FM7/C
How could you lose that happy glow
FM7
Oh Caroline, No
Verse 2:
Who took that look away
I remember how you used to say
You'd never change, but that's not true
Oh Caroline, you
https://www.coveralia.com/acordes/coroline--no-the-beach-boys.php
Bridge:
Dm7 G9 CM7
Break my heart, I want to and cry
E7sus4b9 E7 Am7
It's so sad to watch a sweet thing die
Fm6
Oh Caroline, why
Verse 3:
Could I ever find in you again
Things that made me love you so much then
Could we ever bring them back once they had gone
Oh Caroline, no
[repeat verse chords to fade]