______the letter, tears kept coming to her eyes.A reading B while she was reading
问题描述：
______the letter, tears kept coming to her eyes.A reading B while she was reading
解释,似乎选A又好像选B
答
选B,选A的话,reading 的主语就是主句的主语tears,就不对了,选B就是前面是从句Ϊʲôreading ������������������tears�Dz��ǰ���״����������Ҫ��ͬ������ֱ����reading,����Ĭ������������������ֻ��ʡ����tears is不能把它看成独立主格结构吗独立主格是while her reading the letter,只有一个reading不是独立主格