that he has no qualifications in business management, Ken plans to gain the necessary skills by taking a part-time course.
A. Concerning
B. Concerned
C. Being concerned
D. To concern
网友回答
A. Concerning
(答案→)B. Concerned
C. Being concerned
D. To concern
解析：考查形容词做状语：be concerned with是对,…关心，所以主句的主语与concern是被动关系，排除AD，在看BC选项，其中C表示该动作与主句是同时发生，做伴随状语不能做原因状语。所以选B，做原因状语。句意是说，得知他没有商务管理的资历，Ken计划参加业余课程以补充必要的技巧和能力。