老师好，这道题是我想多了还是答案错了？（过去时VS过去完成时）
— Did you happen to hear the recent news?
—Yes, Alice _____ the gold medal in the speech contest, which I find hard to believe.
A. wins
B. won
C. had won
D. will win
这道题目的答案在每个题库中都是B项won，给出的讲解都是win动作发生在过去，所以用过去时。
可是我觉得C项 had won最好，我感觉，依据第一个人的提问是Did you happen to hear…而不是Do you happen to hear…这里是存在“过去的过去”如此的时间点的。
Alice取得金牌不是发生在“我了解消息”之前吗？
能否把句子改成如此来理解？
I happened to hear the news that Alice had won the gold medal in the speech contest.
是答案won错了吗？还是我想多了？
此题选择 won 没错误。
— Did you happen to hear the recent news?
—Yes, Alice won the gold medal in the speech contest, which I find hard to believe.
因为是两个人之间的对话，到了第二个人回答时，则不必考虑问话人 happened to hear 或 heard 的时态限制。仅需根据实质状况，陈述过去的一个事实即可：won the gold medal。
但，在一个复合句中，需要考虑主、从句“时态的一致和呼应”。所以，网友给出的句子，是完全正确的：
I happened to hear （the news） that Alice had won the gold medal in the speech contest. 或：
I heard （the news） that Alice had won the gold medal in the speech contest.
