He is considered the work ahead of time.
A. finishing
B. to finish
C. having finished
D. to have finished
网友回答
A. finishing
B. to finish
C. having finished
(答案→)D. to have finished
解析：考查consider的用法。consider意为“考虑”时，后加doing；意为“认为”时，后加to do sth.。句意“他被认为已经提前完成工作了。”finish发生在consider前面，故用完成时。故选D。