I like the job, but I think it'll be difficult to _______ nights. A. be used to working B. uses to work C. get used to working D. get used to work

The correct answer is C. get used to working. The phrase "get used to" means to become accustomed to something. The gerund "working" is used after the preposition "to". So, the complete sentence is: I like the job, but I think it'll be difficult to get used to working nights.