2. 外语
  3. It was essential that the application forms ______ back before the deadline.

It was essential that the application forms ______ back before the deadline.

admin2014-01-17  64
问题 It was essential that the application forms ______ back before the deadline.
选项 A、must be sent
B、would be sent
C、be sent
D、were sent
答案C
解析 与essential，  imperative，  anxious，  vital，  keen，  better，  advisable，  preferable，possible，  appropriate，desirable，eager，insistent，natural，proper，important，necessary，urgent等形容词相关的名词性从句中，谓语要使用动词原形或"should+动词原形”，如：It is very necessary that theory should be
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