Question

I am tired _____ walking.​

Answer 1

Answer:

hello dear !!!!

your answer is :--

I AM TIRED OF WALKING

Friend the most suitable word will be 'of' as you are doing an action and usually many of times (Not always) of becomes the preposition for the verbs

Example: dancing, singing,reading etc.

Explanation:

Hope it helps u

Mark me the brainiliest!

Answer 2

$\huge\mathcal\red{AnSwEr:}$

I am tired of walking..

Of is used to denote an action which is being done...

And its a preposition too...