学生们在校长办公室外高声抗议，要求改善食堂伙食。

The students ___clamoured outside the principal's office, demanding better cafeteria food.

孩子们的喧闹声让我无法专心工作。

The ___clamour of the children made it hard for me to focus on my work.

学生们大声要求延长图书馆的开放时间。

The students ___clamoured for longer library hours.