单选题 It is strange that she ______ to see her own shortcomings.
A. should have failed B. has failed
C. fails D. failed

【正确答案】 A
【答案解析】[解析] 在“It is/was+某些形容词”后的that从句中，常用“should+动词原形”表示建议、惊奇等。由于从句谓语动词是已经完成的动作，故用“should+现在完成形式”。