This is a very difficult operation.It is essential that you

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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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美好的摩托

机智的刺猬

2026-06-05 06:54:14

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。

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  • 传统的皮带
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    2026-06-05 06:54:14

    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。

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