听到他去世的消息，她的反应出奇地平静。

She reacted surprisingly ___calmly to the news of his death.

他平静地放下电话，思考着自己的选择。

He ___calmly put down the phone and considered his options.

经理冷静地处理了客户的投诉，高效地解决了问题。

The manager ___calmly addressed the customer's complaint, resolving the issue efficiently.