—Why did you buy so many flowers?Because today is a special day. My parents for twenty

问题补充：

—Why did you buy so many flowers?

--Because today is a special day. My parents for twenty years .

A. married

B. got married

C. have been married

D. have married

答案：

A. married

B. got married

(答案→)C. have been married

D. have married

解析：此题考查延续性动词和非延续性动词之间的区别。Got married， married，have married是非延续性动词，不能跟段时间状语连连用。