be on a walk

Then he is off on his walk through the town.

Then they set out on their long walk to the Museum.

The man on the walk looked him up and down.

He did not step on the moving walk at once.

You can tell me what happened on the walk back.

There still was time to go on his daily walk.

At one, James said that she must work on her walk.

Richard did not, at any point on his walk, stop to think.

And I also know that you spent a summer on rather a long walk.

He questions her but she leaves to go on a walk.