Jack Alice for at least 20 years.
A. has married
B. has married with
C. has been married with
D. has been married to
网友回答
A. has married
B. has married with
C. has been married with
(答案→)D. has been married to
解析：考察时态。句意：杰克和爱丽丝结婚已经有最少20年了。marry with含义为与...融合在一起；杰克是被marry的对象故用被动语态，结合时间状语可知是完成时态，选D.