他的沉默表明他不同意这个计划。

His silence ___indicated he didn't agree with the plan.

老师指出我们可以在课后提问。

The teacher ___indicated that we could ask questions after class.

温度计显示室内温度是25度。

The thermometer ___indicated that the room temperature was 25 degrees.

他用眼神示意我安静下来。

He ___signaled for me to be quiet with his eyes.