First of all why would you want a combobox, if your choices are fixed as described? Seems you would want a dropdown list.
I would use a dropdown list content control and then use the ContentControl_OnExit event in the ThisDocument module to evaluate the selection made and populate the data to other places. You state you need "help." What have you done for yourself?
Here is a start:
Code:
Private Sub Document_ContentControlOnExit(ByVal ContentControl As ContentControl, Cancel As Boolean)
Select Case ContentControl.Title
Case Is = "Section 1 Score"
'Write some text here
'Write this score there
Case Is = "Section 2 Score"
'etc.
End Select
lbl_Exit:
Exit Sub
End Sub