Not until he met with the difficulty _______ the importance of group work.
#82975
A
he realized
B
did he realize
C
realized he
D
he didn’t realize
推荐题目
So ________ student ________ that he can work out all difficult problems.
#83108
A
clever a ; was he
B
a clever; was he
C
clever a , he was
D
a clever, he was
___,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
________ we had read your letter _____the true state of affairs.
#82514
A
It was until… that we understood
B
It was not until…that we understood
C
Until …did not we understand
D
Not until… we understood`