を切望していた

had been longing for

→ を
phrase Rare #20,641
had been longing for A formal expression meaning to strongly desire or yearn for something. The ~ていた form indicates that the longing existed in the past.
JA: 彼は長い休暇を切望していた。
EN: He had been longing for a long vacation.

彼女はを切望していた

She yearned for love.

彼らは私が援助するのを切望していた

They were eager for me to help.

素早い決定を切望していたので議長は投票要求した

Eager for a quick decision, the chair called for a vote.