Only when the villagers were faced with water shortage___ how serious the problem of water pollution was．
#84498
A
did they realize
B
will they realize
C
they did realize
D
were they realized
推荐题目
＿＿＿＿＿,she may not catch up with her sister Lisa.
#83885
A
Hard though she works
B
Hard although she works
C
Hard works she
D
Hard even if she works
＿＿＿,we could forgive him for his mistakes!
#83907
A
Were he still a child
B
If he is still a child
C
Is he still a child
D
He were still a child
I stared into the blackness and wondered if he was as aware of my presence as I .
#81308
A
was of his
B
did of him
C
was him
D
did his
So absorbed in our talk that my brother took a wrong turn on the way to the airport.
#81446
A
he wat
B
is he
C
was he
D
he is
—How much do you know about the 3D film technology?—A little. Not until _______the hot movie Avatar _______ some about it.
#82709
A
did I see; did I begin to learn
B
I saw; I began to learn
C
I saw; did I begin to learn
D
did I see; I began to learn