问题补充：
Two more people in Shanghai have been to be infected with the deadly H7N9 bird flu, local authorities said on Sunday.
A. conducted
B. convinced
C. condemned
D. confirmed
答案：
A. conducted
B. convinced
C. condemned
(答案→)D. confirmed
解析：A. conducted引导，管理，指挥 B. convinced确信 C. condemned谴责 D. confirmed确诊，多用于表示疾病；句意：周日官方媒体报道，上海又有两个人被确诊染上了致命的H7N9禽流感病毒。故选D
