请把电视打开。

Please ___turn on the TV.

他今天穿着那件蓝色的夹克。

He has his blue jacket ___on today.

请确保电脑是开着的再开始工作。

Make sure the computer is ___on before you start working.

音乐会按计划在周五晚上举行。

The concert is still ___on for Friday evening as planned.