问题

It was essential that the application forms ________ back before thedeadline.
A:must be sent
B:would be sent
C:be sent
D:were sent
B:would be sent
C:be sent
D:were sent
正确答案是:
同类题型
-Mom, _____ I watch TV-Yes, you can. But you have to finish the homework first.
After a few days together, they got to the point _______ they could read each other’s thought.
What did the radio say just now- Sorry. I didn’t catch it. I _____ something else.
Planting the trees us ten hours last Saturday.
for the fact that his father is generalmanager of the company, he would never get the job.