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

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问题 I felt somewhat disappointed and was about to leave, ______ something occurred which attracted my attention.

选项 A、unless
B、until
C、when
D、while

答案C

解析 本题考查连词的用法。when作并列连词,表示当某事正在进行时,另一事件突然发生,相当于atthet time。while多用于延续性动作,但此句的主句与从句相关的动作分别为leave与occur,均为短暂性动作,因此不用while。
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本试题收录于: 英语题库普高专升本分类
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