His wife to whom he for 20 years died of cancer last Thursday.A. had marriedB. has been

问题补充：

His wife, to whom he for 20 years, died of cancer last Thursday.

A. had married

B. has been married

C. has married

D. had been married

答案：

A. had married

B. has been married

C. has married

(答案→)D. had been married

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