Notuntilthepressreportedthepollution
來源:國語幫 2.9W
問題詳情:
Not until the press reported the pollution _____________ why the water supply had been cut off.
A. people knew B. people had known
C. did people know D. had people known
【回答】
C
知識點:倒裝與省略
題型:選擇題