Answer:
All of these would be correct.
Explanation:
Mournful: feeling, expressing, or inducing sadness, regret, or grief.
Melancholy: a feeling of pensive sadness, typically with no obvious cause.
Despairing: showing the loss of all hope.
Hope this helps:)
The verb is "should work"
Should is an auxiliary verb, and "work" is an action verb.
I believe it’s b,because it talks about how we did a lot more in his life and that is what the sentence was saying.