“i never knew she was such a fast sprinter” what part of speech is fast

Is "they" an unstressed or stressed syllable?

What statement best describes the central conflict in this passage from the diary of anne frank? because the franks are jewish and the van daans are not, the franks and the van daans do not get along. because they are jewish, the franks, the van daans, and mr. dussel are in hiding to avoid being discovered by the nazi party. anne does not discuss anything with her mother because she believes that her mother does not understand her. mr. and mrs. van daan argue because mrs. van daan does not think that mr. van daan has the right to sell her fur coat.

Wiesel interrupts the narration that begin with, "a few ss officers wandered through the room, " with a parenthetical insertion. explain the purpose of the insertion.