It was essential that the application forms ________ back before thedeadline. A．must be sent B．would...
2023-02-05 21:10:46 162次 20102011学年浙江省嘉兴市高一下学期期中考试英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It was essential that the application forms
________ back before thedeadline.
|
A．must be sent
|
B．would be sent
|
C．be sent
|
D．were sent
|
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