Though working outside he is always about his aging mother at home.A. concerned B. satisf

问题补充：

Though working outside, he is always about his aging mother at home.

A. concerned

B. satisfied

C. excited

D. particular

答案：

(答案→)A. concerned

B. satisfied

C. excited

D. particular

解析：考查形容词：A. concerned担心的B. satisfied满意的C. excited 兴奋的D. particular讲究的，句意：虽然在外面工作，他总是担心家里年迈的母亲。选A。