An unabridged dictionary of English language attempts to cover all the words and gives information. I hope I helped you...
Answer: The mistake could not have been made by them.
subject comes first and pronoun goes last
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Imagine. Yikes You have to much time on your hands
The correct answer is A. Earthly
Utilitarian and frivolous are antonyms, which means they mean the opposite. The opposite of metaphysical is earthly because metaphysics often deal with supernatural things or things that cannot be observed.