The sentence needs commas because the participial phrase is essential.
I think it’s D. The doctor and the nurse given me something to “put me under.”
Well, I think, the main point that makes the difference between "Mending Wall" and “The Purple Cow” is actually demonstrated by the rhyme. Just read each poem one more time and feel that one of them is readed easily, words matched with each other like a song's lyrics so that you can smoothly go on reading whereas "Mending Wall" is made with structure of blank verse that emphasises every line and makes reader feel it deeply.
Subjunctive mood is used to express wishes and possibilities, whereas on the other hand, indicative mood is used for facts. So let's go through all of these sentences:
1. I would go for a walk if it weren't raining - this is subjunctive. The form <em>weren't </em>used as a possibility is indicative of subjunctive mood. This person <em>wishes </em>he could go for a walk, but cannot because it is raining
2. I wish you continued at your job - this is also subjunctive. The form <em>continued is </em>is indicative of subjunctive mood. This person <em>wishes </em>something happened, but it didn't.
3. Brett wants Molly and Trent to study with him. - this is indicative. It is a fact that this person wants, so this is not subjunctive.
4. Coach recommends that we run two laps around the track. - this is subjunctive. The coach <em>wishes </em>something would happen - he is going to make his students to what he wishes them to do.
With verbs such as recommend, wish, suggest, demand, etc., subjunctive mood is used.