他把相框端正地摆在了书架上。

He ___set the photo frame straight on the bookshelf.

他们为比赛设定了新的规则。

They ___set new rules for the competition.

请帮我把闹钟设置到早上7点。

Please ___set the alarm for 7 AM.

这个消息让她心情平静了下来。

The good news ___set her heart at peace.

月亮在群山后面缓缓落下。

We saw the moon ___set behind the mountains.