The young lady responded to my greeting with a look as if I were air, which made me feel somewhat embarrassed.
A. vacant
B. grateful
C. desperate
D. curious
网友回答
(答案→)A. vacant
B. grateful
C. desperate
D. curious
解析：词义辨析。A. 空虚的；茫然的 B. 感谢的 C. 令人绝望的 D. 好奇的；古怪的。句意：这位年轻的女士用一种空洞的表情回应我的问候，好像我是空气一般，让我觉得有点尴尬。选A。