Complete the Past Perfect questions with the correct word combinations.

Choose the correct option.

[How you did feel|Did how you feel|How did you feel] when you realized you had lost your keys?

[She had already graduated|Had she already graduated|Had graduated she already] when you met her?

[You had visited|You visited had|Had you visited] the museum before it closed, [hadn't you|you hadn't|hadn't]?

[You had completed|Had completed you|Had you completed] the online course before you returned home?