新概念第三册第24课复数的问题
We often read in novels how a semmingly respectable person or family has some terrible secret which has been concealed from strangers for years.
其中：..has some terrible secret which has been
这里使用了 some ,但secret 为什么没有用复数形式呢?
24课最后一句也让我困扰.
But George was unsympathetic,"On,that",he said with a smile as if he were talking about an old friend.
既然是 he 那为什么用 were talking?难道这句话的主语不是 he