1027. What character can be added to both of these characters to give other characters? ネ_ -> _平

Answer:

ネ  Katakana "Ne" or The "Shimesuhen" radical - altar, festival, religious service

平  HEI, BYOU, taira, hira - flat, level

Add 土:ネ+土 土+平 

土  DO, tsuchi - earth, soil

社  SHA, yashiro - shrine, company

坪  tsubo - unit of area