Not until all the fish die in the river
问题:
Not until all the fish die 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
Not until all the fish die 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