One today equals two tomorrows means that what you can accomplish today is more important than what you have planned tomorrow. Today is now. Do something today if you are able to do it. Tomorrow is not guaranteed. The time that you have in life is limited. You have to accomplish one day at a time without thinking about a tomorrow.
I agree with that because if you don't do what you planned to do today, you will probably never get another day to do it. Life can be very unpredictable and I think you should take one day at a time and live your life to the fullest.
The structure of the poem affects its meaning because it creates a specific effect on the reader.
In this case, the stanzas describe ways that the speaker has treated others in relationships.
The answer is D.
If you look into it there are more creepy similarities between them :)
You can make a list of when everything is due and do things in that order, it works pretty well and is flexible and if you get an assignment that is due tomorrow or anything with a short timeframe then you can put it at the top of your list. You could write the list on a piece of paper or notebook so that you can keep it with you and update it when you want.
Hope this helps!