I felt somewhat disappointed and was about to leave，something occurred which attracted my

发布时间：2020-08-17 13:41:44

     I felt somewhat disappointed and was about to leave，something occurred which attracted my attention.
A. Unless
B. Until
C. When
D. While

网友回答

A. Unless
B. Until
(答案→)C. When
D. While
解析：“当我觉得有点儿失望，正要离开的时候，突然出了一件事，吸引了我的注意力。”
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