(2010年福建毕业班检查)I am delighted________as chairman of the Students’ Union last winter. A.to appoint B.to be appointed C.to have appointed D.to have been appointed
答案:解析:选D。考查非谓语动词。sb.be delighted后常接不定式,同时根据句意表示“我很高兴去年冬天被任命为学生会主席”,appoint这个动作发生在“过去,且已经完成”,用不定式的完成时态,而且I和appoint之间为动宾关系,所以用to have been appointed,答案选D项。