I felt somewhat disappointed and was abo

考试题库2022-08-02  10

问题 I felt somewhat disappointed and was about to leave, _____ something occurred which attracted my attention.A.unlessB.whenC.untilD.while

选项 A.unless
B.when
C.until
D.while

答案 B

解析 句意:正当我感到有些沮丧准备离开时,发生的一件事吸引了我的注意力。when引导时间状语从句。
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