Idioms are phrases with figurative meanings. Option D contains the idiom 'hit the books.' Understanding idioms enhances language skills.
Idioms are phrases that have a figurative meaning different from their literal interpretation. In the given options, Option D - 'Since I've got a test tomorrow, I'd better hit the books' contains the idiom 'hit the books,' which means to study intensively.
Idioms add color and depth to language, making it more expressive and interesting. Understanding idioms is important for effective communication and comprehension.
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