Question

Grammar portion
use this and that who those
_is he standing at the bus stop​

Answer 1

Who is he standing at the bus stop?

Step-by-step explanation:

You can't use "this", "that" or "those" cause the context is more of a question to a direct sentence.

so "who" is the correct and most appropriate word to use in that context or sentence

I believe that sentence as a question mark "?" which you forgot to put right there.

Answer 2

who

Step-by-step explanation:

as the answers will be who because the sentence is _ is he standing at the bus stop so ot suits to who