Some say the light bulb was the most significant ____ ...

[ Grammar ]

Some say the light bulb was the most significant ____ in history.

A. innovation

B. inspiration

C. implication

D. instigation

Select your answer:
A B C D E

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Perfect Modals Verb Ability Articles and Demonstratives Verbs Present/Past/Past Particple Time Clause Grammar Double Object Verbs Do not- Does not Adverbial Clause of Concession Phrasal Verb

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a type of preposition that shows the relationship of place between the Nouns and other parts of a sentence

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A. Although

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A. enough

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B. mop

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