Question

He ____ to the radio on his way to work (simple continues) ​

Answer 1

Hey Mate....

Heres the answer to your question,

He   _is listening_  to the radio on his way to work

Hope this help you.

Mark as Brainliest if it does

#Axial

Answer 2

Answer:

He was listening to the radio on his way to work.(For Past)

Or,

He will be listening to the radio on his way to work. ( For Future)

Or,

He is listening to the radio on his way to work. (For present)

As you didn't mention which tense, I had to write all three.