A)
1.going
2.to fail
3.to do
4.to turn
5.to speak
6.moving
7.making
8.to get
9.of getting
10.to tell
11.to put
12.to going
It has one line of symmetry which runs right down the middle of it.
Hope this helps.
Structure is used to create an order of events as the words 'sky was dim' suggest that it was dawn preceding the 5th line which states that the 'morning arrived' which shows a sequence of events such as dawn before morning.