For this question, we are supposed to choose a word that means "difficult" to complete the sentence and, in this case, the best option would be "grueling".
<h3>How to complete the sentence?</h3>
To complete the sentence provided in the question, we must take the context provided into consideration. According to the speaker, there was a race through the desert. It was an extremely difficult and tiring one, since it was long and hot and the speaker's shoes were too tight.
Taking the answer choices into consideration, the best option is the first one, "grueling." The adjective "grueling" is used to describe something that is extremely demanding and tiring. That is precisely what the speaker is trying to say about the race.
With the information above in mind, we can choose "grueling" as the correct way to complete the sentence.
The answer choices are:
Learn more about completing sentences here:
brainly.com/question/14021434
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