-You don't look well,Don!You'd better see your doctor.-I _____ ,but he said there was nothing wrong.A will B would C had D have这题为什么不选C?

-You don't look well,Don!You'd better see your doctor.-I _____ ,but he said there was nothing wrong.A will B would C had D have这题为什么不选C?
-You don't look well,Don!You'd better see your doctor.
-I _____ ,but he said there was nothing wrong.
A will B would C had D have
这题为什么不选C?

-You don't look well,Don!You'd better see your doctor.-I _____ ,but he said there was nothing wrong.A will B would C had D have这题为什么不选C?
I have,but he said there was nothing wrong
选D, 完整的句子是：I have seen my doctor.
选C不对,不可以用过去完成式.因为是现在在说话,为什么要用过去完成式呢?用过去式和现在完成式都可以.
过去完成式一般不用于正常对话中,而用于叙述过去事件的文章中.单选题,如果没有语境或条件状语,根本用不到过去完成式哦.