–John and I will celebrate our fortieth wedding anniversary next month.
--Oh, !
A. cheer up
B. well done
C. go ahead
D. congratulations
网友回答
A. cheer up
B. well done
C. go ahead
(答案→)D. congratulations
解析：考查交际用语。A振作起来；B干得好！C去做吧！D祝贺你！句意：—John和我在下个月要庆祝我们结婚40周年。—祝贺你们。故D正确。