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Help the Chief Engineer complete the emergency protocol log by selecting the exact wording required by Starfleet regulations.
It is absolutely crucial that the hyperdrive _________________________ deactivated immediately to prevent a core meltdown. Furthermore, the Captain demands that Commander Zog _________________________ the big, blinking red button ever again.
The correct answers are be and not press.
When a that-clause follows an adjective of urgency (like crucial, essential, imperative) or a verb of demand (like demand, insist, require), we use the mandative subjunctive.
The subjunctive mood always uses the base form of the verb (e.g., be instead of is/are, and press instead of presses), regardless of the subject.
To make it negative, simply place not before the base verb (e.g., not press instead of does not press).