Question

sentence,base word,suffix,word,used as a(n)
he ______ that the culprit was the narrator came as a total surprise.,reveal verb,-ation,revealation,noun
the ______ cause of the drop in sales that day was a heavy rainstorm.,underlie verb,-ing,underlying,adjective
it was a ______ gesture only that had no real effect.,symbol noun,select answer,select answer,select answer
i don’t understand why you didn’t expect me, since i said ______ that i would attend this meeting.,explicit adjective,select answer,select answer,select answer
right now, the idea was just an ______, and he needed to add details to the plan to it to make it more concrete.,abstract adjective,select answer,select answer,select answer

Explanation:

1. For "symbol" (noun), adding the suffix "-ic" makes "symbolic" which is an adjective and can describe the gesture as having a symbolic nature.
2. For "explicit" (adjective), adding the suffix "-ly" makes "explicitly" which is an adverb and can modify the verb "said" to mean in an explicit manner.
3. For "abstract" (adjective), adding the suffix "-ion" makes "abstraction" which is a noun and can refer to the abstract idea in the sentence.

Answer:

1. Suffix: -ic, Word: symbolic, Used as an: adjective
2. Suffix: -ly, Word: explicitly, Used as an: adverb
3. Suffix: -ion, Word: abstraction, Used as an: noun