Hi there.<br/><br/>What could be the correct option for the question below?<br/><br/>Now I <i>______</i> at night.<br/><br/> A. am used to work<br/> B. used to work<br/> C. used to working<br/> D. am used to working<br/><br/>I thought the answer was D,but the official answer key says C. I think answer key is wrong. What do you think?