问题详情:
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
知识点:倒装与省略
题型:选择题
问题详情:
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
知识点:倒装与省略
题型:选择题