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Help the archivist at the spy agency declassify some old files! Select ALL the sentences that correctly use a double passive construction to describe the secret operations.
The correct answers are The encrypted hard drive is scheduled to be wiped at midnight. and The undercover operatives are known to have been compromised.
Double passives work beautifully with verbs of scheduling, knowing, and reporting (scheduled, known).
They do not work with verbs of desire or hope (want, hope, desire). You cannot say something "was wanted to be done" or "was hoped to be done." Instead, you must use an impersonal construction ("It was hoped that they would be rescued") or an active structure ("The director wanted the drive to be wiped").