In this sentence, the word "all" is the subject of the sentence, and is thus in the nominative case. " From this, it can be seen that the word in the blank is the subject of its sentence, and thus is in the nominative case. "She" is the nominative form of the third person singular feminine personal pronoun.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.