radio

我爷爷以前很喜欢听这台收音机。

My grandpa used to listen to this ___radio a lot.

他们通过无线电与救援队取得了联系。

They contacted the rescue team using ___radio.

你能帮我调一下收音机的频道吗？

Can you help me tune the ___radio station?

收音机里在放什么歌？

What song is playing on the ___radio?