This is a very difficult operation.It is essential that you ________ for emergencyA.are to be prepared B.would preparedC.be prepared D.must be prepared

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Thisisaverydifficultoperation.Itisessentialthatyou________foremergencyA.aretobepreparedB.wouldprepar

This is a very difficult operation.It is essential that you ________ for emergencyA.are to be prepared B.would preparedC.be prepared D.must be prepared
This is a very difficult operation.It is essential that you ________ for emergency
A.are to be prepared B.would prepared
C.be prepared D.must be prepared

This is a very difficult operation.It is essential that you ________ for emergencyA.are to be prepared B.would preparedC.be prepared D.must be prepared
答案选C
这里是虚拟语气从句应该用should+原形,should可以省略
it is +necessary等形容词后,that主语从句中虚拟形式使用,这类形容词包括necessary,important,essential,imperative,urgent,preferable,vital,advisable等,例如It is necessary that you listen to the teacher carefully.或者It is essential that you be able to pronounce every single word correctly.

选C啊

选C，虚拟语气，省略should

this is a very difficult operation. It is essential that you be prepared for emergency.
choose C
这是一个很难的操作。你必须对紧急情况有所准备。

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