A-A+
Not until all the fish died in the river______
问题详情
Not until all the fish died in the river__________ how serious the pollution was．
A．did the villagers realize
B．the villager srealize
C．the villagers did realize
D．didn"t the villager srealize
参考答案
正确答案：A
Not until前置要用倒装，应排除B、C。Not否定词已在句首，didn’t中的否定与之重复，所以答案为A。
