Mr. Black, ＿＿＿＿＿ born in Kentucky, lived and practiced law in Missouri. A. wasB. he wasC.

网友回答

A. was
B. he was
(答案→)C. although
D. who he was
解析：在带有状语从句的复合句中，如果从句与主句的主语一致，且从句中含有be动词，则可以省略从句的主语及be动词。此处从句中省略了they are。