दिए गए वाक्य के लिए मॉडल ऑक्जिलरी वर्ब (modal auxiliary verb) का सही रूप चुनें: Yesterday, while rushing to catch the bus, I lost my umbrella. I ______ have left it at the bus stop.

Select the correct modal verb that best expresses past possibility and uncertainty. He __________ have missed the meeting, as no one recalls seeing him there, and his name does not appear in the attendance register.