问题补充:
In the reading room, we found her seated at a desk, her attention on a novel.
A. fixing
B. to fix
C. fixed
D. having fixed
答案:
A. fixing
B. to fix
(答案→)C. fixed
D. having fixed
解析:句意:在阅览室,我们发现她坐在书桌旁,她的注意力集中在一本小说上。这里含有一个独立主格结构,“her attention”与“fix”之间是被动关系,故用过去分词,选C。