Not until all the fish died in the river ________ how serious the pollution was.
A.did the villagers realize | B.the villagers realized |
C.the villagers did realize | D.didn’t the villagers realize |
推荐套卷
Not until all the fish died in the river ________ how serious the pollution was.
A.did the villagers realize | B.the villagers realized |
C.the villagers did realize | D.didn’t the villagers realize |