Not until the fish died in the river             how serious the pollution was.
#84077
A
did the villagers realize
B
the villagers realized
C
the villagers did realize
D
didn’t the villagers realize
推荐题目
Not until____ did Humphrey begin working. 
#80292
A
did it stop raining
B
had it stopped raining
C
it stopped raining
D
it stops raining
 “We_____ the train had we left earlier,” the wife complained to the husband.
#81512
A
wouldn’t miss
B
wouldn’t have missed
C
would miss
D
would have missed
He failed the mid-term examination and only then________how much time he had wasted.
#80837
A
he realized
B
did he realize
C
he had realized
D
had he realized
      a nice man        that we all believe him.
#84040
A
Such; did he seem
B
So; did he seem
C
Such; he seethed
D
So; he seined