Final answer:
The correct word to complete the sentence is d. 'seldom,' as the sound of a tire going flat is not often heard.
Step-by-step explanation:
When deciding on the correct word to complete the sentence 'You will ________ hear a tire going flat.', the best choice is the one that accurately reflects how often you can perceive this event with your hearing. Tires can go flat quietly, and the sound may not always be noticeable, especially if the leak is slow or occurs while driving in noisy conditions. Consequently, the best option to fill in the blank would be 'd. Seldom'.
The word seldom means 'not often' or 'rarely,' which fits the context of the sentence because you might not always detect the sound of a tire deflating. Other choices like 'always' and 'usually' would be incorrect because they suggest that the sound of a tire going flat is a regular occurrence, which is not accurate. The word 'frequently' also does not fit since it implies a higher occurrence than what is typical for this event.