Answer:
Kavita bought <em><u>two </u></em>sandwiches, one for herself and one for me.
Jonas wanted to run another mile, but he was <em><u>too </u></em>tired.
Do you know when <em><u>they’re </u></em>expected to arrive?
Alberto and Maggie turned in <em><u>their </u></em>science project.
Explanation:
Homophones are those words that have the same sound but differ in their spellings and word sources. These words are easily confusing and could lead to major mistakes in sentence meanings once the wrong words are used.
In the given sentences, the correct homophones to be used according to the sentences are-
1. <u><em>two</em></u>, because Kavita bought sandwiches, which can only suggest the homophone has to be number of sandwiches.
2. <u><em>too</em></u>, for it talks of how tired Jonas is after he ran the extra mile. The other words "to/ two" couldn't explain the quality of the verb "tired".
3. <u><em>they're</em></u>, as the sentence is asking about the timing for the arrival of the others. It denotes the pronoun of the people who are expected, thus the use of the words "there/ their" is invalid.
4. <u><em>their</em></u>, for the science project belongs to the two students, thus the use of the possessive pronoun.