我爷爷每天晚饭后都会打开收音机听戏曲节目。

My grandfather turns on the ___radio to listen to opera after dinner every day.

我爷爷每天早上都会听广播新闻。

My grandfather listens to the ___radio for news every morning.

船员们用无线电向海岸警卫队报告了遇险信号。

The crew ___radioed the distress signal to the coast guard.