दिए गए वाक्य में रेखांकित खंड को प्रतिस्थापित करने वाले सबसे उपयुक्त मुहावरे का चयन करें। He's been working late into the night, trying to finish his thesis before the deadline.

Choose the alternative that best expresses the meaning of the given idiom: 'To spill the beans'

Select the most appropriate meaning of the given idiom: 'Clouds on the horizon'

Identify the most appropriate meaning of the given idiom: 'Drive someone up the wall'