Question

It was essential that the application forms ________ back before thedeadline.

A．must be sent

B．would be sent

C．be sent

D．were sent

Answer 1

C

这题考查虚拟语气的用法：在句型It‘s +adj+that从句中，如果adj是essential，necessary，natural等的话，that从句中用sb should do，should可以省略。句意是：申请书要在截至日期前送回来这是最基本的。选C。