法庭传唤他下周出庭作证。

He was ___summoned to appear in court next week as a witness.

老师召集所有学生到操场参加紧急集会。

The teacher ___summoned all students to the playground for an urgent assembly.

他深吸一口气，鼓起勇气走进了面试室。

He took a deep breath and ___summoned his courage before walking into the interview room.