部長はもう___になりましたか。
Q. Which completes the honorific 'Has the manager already returned home?'
Translation
Has the manager already gone home?
Explanation
The honorific pattern is お + masu-stem + になる: お帰りになりました. The stem is 帰り, not the te-form 帰って. ご attaches to Sino-Japanese nouns, and 帰られて doesn't fit the 〜になりました frame.