Hi Lindy!
The lines of continuation terminate after the last affected note. So in measure 3, the two lines would both be terminated after the D quarter note.
Measure 9, terminate after the F; likewise in measure 10. In measures 11-15 the secondary lines (the pdf is blurry and I can't read the number - is it 2?) would all terminate after the Gs. The line for 1 would also terminate after the G in measure 15.
Hope that helps!
Kathleen