Question

1. sleep is not something i get much. since i have been working nights.

sleep is not something i get much, since, i have been working nights.
correct as is
sleep is not something i get much; since i have been working nights.
sleep is not something i get much since i have been working nights.

Explanation:

The original sentence has a fragment: "Since I have been working nights." is a dependent clause and can't stand alone. The correct option should combine the two parts properly. The option "Sleep is not something I get much since I have been working nights." correctly combines the independent clause and the dependent clause (introduced by "since") without unnecessary punctuation. The first option has an extra comma after "since", the second is incorrect as the original has a fragment, and the third uses a semicolon incorrectly with a dependent clause.

Answer:

D. Sleep is not something I get much since I have been working nights.