题目

I failed the exam. What ________ news！I worried that my parents would be ___ at my grades.A. disappointing；disappointingB. disappointed；disappointedC. disappointed；disappointingD. disappointing；disappointed 答案：【答案】D【解析】句意：我考试不及格。多么令人失望的消息！我担心我的父母会对我的成绩感到失望。考查形容词辨析题。disappointed失望的，用于人，be disappointed at（某人）对…失望；disappointing令人失望/扫兴的，用于形容事物。根据句意语境，可知选D。 已知复数z＝2＋i，是z的共轭复数，则________．