When nikki said she had done st^p1d things in the past she thought of ..? (book: Chain Reaction)

comfortable

explanation:

one type of the adjectives is predicate adjective. a predicate adjective is an adjective which follows a linking verb and modifies or refers back to the main subject of that linking verb.

it usually is used just before the noun it modies.

here in this example:

'penguins seem comfortable in the coolest habitats', comfortable is the predicate adjective which follows the linking verb 'seem' and modifies the noun.

i'm thinking it would be when compound subjects are joined by or, nor,either-or, neither-nor.

lol sure. you actually used points for this?