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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1339

-- Sir, could you please wait for another 20 minutes and we’ll serve you very soon.
-- Another 20 minutes? It was only 6 o’clock ________ I got here, but it’s 7∶10 now.

A.since B.when C.that D.before
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Sir,couldyoupleasewaitforanoth