choose the correct homophone to complete each sentence.
kavita bought totwotoo sandwiches, one for herself and one for me.
jonas wanted to run another mile, but he was totwotoo tired.
do you know when there their they’re expected to arrive?
alberto and maggie turned in theretheirthey’re science project.

Homophones are those groups of words sharing the same pronunciation albeit they have different meanings and spelling; and when heard, it's the context what allows to identify the corret meaning, so in the 1st one, since we talk about sandwiches for a couple, two = 2

then in the 2nd one, being overly tired after the big run matches with "too"

the 3rd one is a question about "who" and "what", thereby the contraction "they're",

and the last one is a statement about ownership, thus the possesive case of the pronoun they which is "their".

Explanation:

on the morning of  july 21,  1861, general mcdowell ordered the  unionarmy to attack. it was on this hill that  confederate  colonel thomas jackson and his forces held back theunion  troops.

it would be a. that is the only one i could think of