成人高等教育 / 大学英语
正确率：100%
The board deemed it’s urgent that these invitations _ _ _ _ _ first thing tomorrow morning.
- A、 had to be put in the mail
- B、 must be put in the mail
- C、 be put in the mail
- D、 should have been put in the mail
参考答案：
佳题速递：