1.gerunds, infinitives, and participles are types of
conjunctions.
predicates.
verbals.

2.which are types of modifying phrases? select all that apply..

adjective.
adverb.
appositive.
conjunctive.
predicative.
repositional.

3.parallel structure aids the reader's comprehension of ideas and their relative importance..

true.
false

The correct answer for 1 is verbals. They're not conjunctions, and other things can be predicates too. The correct answer for 2 is Adjective, adverb, appositive, and prepositional, as they modify the noun or the verb that is the main one to which they refer. The correct answer for 3 is True because that's exactly what parallelisms are used for.