Helen, let's go to the new cinema tonight. You can sit ________ there in this city.
A.comfortably B.more comfortably C.the most comfortably
C
【详解】
句意:Helen,我们今晚去看电影吧,这个城市里你在那可以坐得最舒服的。
考查副词最高级的用法。comfortably舒服地;more comfortably更舒服地;the most comfortably最舒服地。根据题干中的范围在这个城市里,可知是最高级。故选C。