Not until all the fish died in the lake __________ how serious the pollution was.
#80197
A
did the villagers realize
B
the villagers realized
C
realized the villagers
D
do the villagers realize
推荐题目
________, I think, and the problem could be settled.
#82911
A
So long as you keep up your spirits
B
A bit more effort
C
If you doubt your efforts
D
Making great efforts
On the top of the mountain two towers built more than 500 years ago.
#84078
A
is standing
B
are standing
C
stand
D
stands
Our school has used computers in teaching for ten years. As a result, not only______, but students become more interested in their lessons.
#82767
A
has teachers’ energy been saved
B
saved was teachers’ energy
C
teachers’ energy has saved
D
was saved teachers’ energy
If unsolved, the problem of food safety may lead to more serious results.
#80315
A
having left
B
to leave
C
left
D
leaving
John opened the door. There _______ he had never seen before.
#82314
A
a girl did stand
B
stood a girl
C
a girl did stood
D
did a girl stand