1770. What characters can be added here so that each character contains a part of the previous character? a) 架 -> _ -> _ -> 紙 b) 暦 -> _ -> _ -> 吸

Answer:

a) 架 -> 柱 -> 素 -> 紙

架  KA, ka(keru), ka(karu) - hang, build (a bridge)

柱  CHUU, hashira - pillar, column, pole

素  SO, SU - element, naked, simple

紙  SHI, kami - paper

b) 暦 -> 早 -> 古 -> 吸

暦  REKI, koyomi - history

早  SOU, SA, haya(i) , haya(meru) - early, fast, hasten

古  KO, furu(i) - old

吸  KYUU, su(u) - suck, inhale, smoke