Question

complete the sentence.
nolan would make a superb mayoral candidate because he is engaging, ______, and always strives for excellence.
thoughtful
is thoughtful

Explanation:

The sentence uses parallel structure to list positive traits of Nolan. The existing items are adjectives ("engaging") and a verb phrase that aligns with an adjective-driven parallel structure. To maintain grammatical parallelism, we need an adjective form, not a verb phrase. "Thoughtful" is an adjective that matches the structure of "engaging", while "is thoughtful" breaks the parallelism.

Answer:

thoughtful