He was deep in thought with his eyes_____ on the ceiling. A.fixed B.fixing C.fix D.to be

He was deep in thought with his eyes_____ on the ceiling. A.fixed B.fixing C.fix D.to be fixing

A

考查with+n.+doing 复合结构。Fix one’s eyes on结构中名词和动词之间为被动关系,凝视-----,为固定短语,故用fixed。
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