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Ifeltsomewhatdisappointedandwasabouttoleave,somethingoccurredwhichattractedmyattention.A.unlessB.untilC.whenD.while

题目详情
I felt somewhat disappointed and was about to leave,____something occurred which attracted my attention.
A.unless B.until C.when D.while
▼优质解答
答案和解析
答案是C.be about to do something when...的意思是“就要干...这时(突然)...”.
这句话的意思是:我感到有点失望,就要离开,这时突然发生一件事,引起了我注意.