.---You have accepted the job offered by the company,haven’t you?

问题描述:

.---You have accepted the job offered by the company,haven’t you?
  ---No.And .I’m now working in a better one.
A.I’m happy I didn’t B.I was happy I didn’t
C.I’m happy I have D.I was happy I have
为什么不能用D

这道题应该选A对么?
首先是现在很高兴很庆幸当时没被那份工作录取,所以用am不用过去式was
其次它庆幸的是没被录取,需要用否定.