With everything the manager left for England to attend an important business meeting.A.

问题补充：

With everything, the manager left for England to attend an important business meeting.

A. arranging

B. to be arranged

C. to arrange

D. arranged

答案：

A. arranging

B. to be arranged

C. to arrange

(答案→)D. arranged

解析：句意：因为要处理一切事情，这位经理离开英国来参加一个重要的一次会议。因为everything与arrange之间是被动关系，又根据left可知事情已经处理，故用过去分词，故选D。