The preparation_________ by the time the guest_________ A. have finished- arrived B. had been finished- arrived C. had finished-were arriving D. have been finished- were arrivedĐoạn văn194/200The preparation_________ by the time the guest_________ have finished- arrivedhad been finished- arrivedhad finished-were arrivinghave been finished- were arrivedGiải thíchĐáp án B