His heart racing, and tears his eyes, Jack carefully unlocked the box.
A. filled
B. filling
C. to fill
D. being filled
网友回答
A. filled
(答案→)B. filling
C. to fill
D. being filled
解析：考查独立主格结构。本题and连接的是两个独立主格结构。因为名词tears与动词fill构成主动关系，故把现在分词的逻辑主语放在分词的前面构成独立主格结构；独立主格结构相当于一个状语从句。句意：他的心跳的很快，眼泪充满了眼睛，Jack仔细的打开了书。故B正确。