It was essential that the application forms ____________back bef
分类: 笔试(00004)发布时间: 2024-08-16 05:25浏览量: 1
It was essential that the application forms ____________back before the deadline. A、be sent B、must be sent C、were sent D、would be sent 【正确答案】：A 【题目解析】：It was essential that +虚拟语气（should do）