The question requires us to fill in the blanks with the appropriate words chosen from the given options. Let's explore the meanings of the words and see which fit best contextually.
Final Sentence: "The fare is too high for it to be considered fair."
This answer is logical as it aligns with the typical usage of these words when discussing pricing or cost in relation to fairness or reasonableness.
Choose the option that best completes the sentence:
"If you want to improve your English, you __________ practice regularly.''