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Sentence Completion
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Directions: Choose the appropriate option and fill in the blank.
The higher you go, the more difficult it _________ to breathe.
AnswerClick to flip back
A
becomes
💡 Explanation:
This is the case of present indefinite tense. As the sentence mentions about a 'general fact' of present, so we should use the first form of the verb without any helping verb. Thus, 'becomes' is the right choice.