12. Die Pause dauerte eine ....

• The sentence translates to "The break lasted one ...."
• The options are "Stunde" (hour), "Tag" (day), "Minuten" (minutes), "Uhr" (clock/o'clock).
• The most logical completion for a break is "hour" or "minutes". Given the singular "eine", "Stunde" is the most grammatically fitting.

Stunde