做题室题库

题库首页

The board deemed it’s urgent that these invitations () first thing tomorrow morning. ( 章节:1 难度:3)

  • 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
正确答案:C
答案解析:
进入题库查看解析

微信扫一扫手机做题