Rearrange the parts to form a meaningful sentence: P: participate in the function Q: many of the people who had come to R: the auditorium was over-crowded S: could not find a seat because

The correct sequence is QPSR: 'Many of the people who had come to participate in the function could not find a seat because the auditorium was over-crowded.' This forms a grammatically correct and logically coherent sentence where Q introduces the subject (people), P describes their purpose, S states the consequence, and R provides the reason.