问题补充:
The students are listening to the teacher with their eyes the blackboard.
A. fixing on
B. fixing to
C. fixed on
D. fixed to
答案:
A. fixing on
B. fixing to
(答案→)C. fixed on
D. fixed to
解析:fix与其逻辑主语their eyes是被动关系,故用过去分词,构成with +名词/代词+过去分词的独立主格结构。