Question

1. He puts a collar around his dog before walking it.

2. He puts a collar on his dog before walking it.
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Are both OK? Do we have to use 'around' or 'on'? Can we use other verbs instead of 'puts'?

Answer 1

"around" is rather vague. Does he put it around the dog's neck, it's abdomen, it's tail? Usually a collar does go on the neck, so I prefer #2.