单项选择题
A．uncertain … a capricious
B．uncontested … a predictable
C．unrealistic … a catastrophic
D．convincing … a redundant
E．infallible … an erratic
单项选择题 An enthusiast of sprightly music, Mendler surprised us all by proclaiming the final piece on the concert program, a lugubrious______as his favorite.（）
单项选择题 Performing rote memory exercises rarely improves the______of any given subject, but______may nevertheless be useful to the student preparing for an examination.（）
单项选择题 IMPUDENT:（）