—Did Kate do best in the final exam?
—No, but of all the students she did .
A.the most careful B.more careful C.most carefully D.more carefully
C
【详解】
句意:——凯特期末考试考得最好吗?——不,但在所有学生中她做得最仔细。
考查副词最高级。修饰did用副词,排除AB;比较范围是”of all the students”,故用最高级,选C。