There is no doubt that our educational system leaves something .
A. being desired
B. to be desired
C. to desire
D. to have been desired
网友回答
A. being desired
(答案→)B. to be desired
C. to desire
D. to have been desired
解析：考查非谓语动词。句意：毫无疑问，我们的教育制度令人不满意。此句中something与desire在逻辑上为动宾关系，故用被动形式，此处意为“留下了被期望的东西”。故选B，不定式的被动形式作宾补。