Answer:
The element that does not contribute to the dreary mood of this short passage from the novel Bleak House by Charles Dickens is:
Infinitives
Step-by-step explanation:
The reason behind this is that in the first place we recall that the mood in a piece of text is the atmosphere the author creates using, adjectives, stylistic devices, and many more elements to achieve it. Now, in our case, repetition provides the same level of importance to the elements involved by it. So it is necessary to create a context. Punctuations lets you emphasize different moments, and elements. Adjectives allow us to provide a characteristic of an object or action. While infinitives by themselves don't provide the atmosphere because eat or dance by themselves doesn't provide a perspective or style.