consternation

听到公司突然倒闭的消息，员工们感到十分惊愕。

The news of the company's sudden closure filled the employees with ___consternation.

考试当天突然更改题型，在学生中引起了一阵慌乱。

The sudden change in the exam format caused ___consternation among the students on test day.

让主办方大为惊慌的是，主旨演讲人在会议开始前一小时取消了出席。

Much to the ___consternation of the organizers, the keynote speaker canceled an hour before the conference.