问题

Not until he met with the difficulty _______ the importance of group work.
A:he realized
B:did he realize
C:realized he
D:he didn’t realize
B:did he realize
C:realized he
D:he didn’t realize
正确答案是:
同类题型
ryone here —Not yet Look, there_______ the rest ofour students!
He should have come to join in the thorough cleaning.—He _____. I don’t think it was his turn.
He is one of the cleverest students ________ hard work was paid in the end.
“ ____________ you’ve made! But you should still work harder,” the teacher said to the boy.