Deer and dear are are homophones, not homonyms.
deer
Dear
Deer-dear
A homonym for "doze" is "dose," which sounds the same but has a different meaning - it refers to a specific amount of medicine or substance.
"Bare" and the brand name "Bayer" are homonyms of "bear." bear = animal bare = uncovered, as in bare feet
The answer is which, but you mean homophone, not homonym.
The homonym of "drenched" is "drentched."
Hour is a homonym for our.
The homonym for "mourning" is "morning".
A homonym for "grays" is "greys."
The homonym for 'census' is 'sense'.
Was is a linking verb. It does not have a homonym.