one day i decided ①to look at each key on my key chain and see which ones i wasn’t using. i found two keys on my key chain that i used for the lock on the barn door. i hadn’t used those keys in 10 years! i didn’t even know ②where that lock was. at one time those keys served a purpose. but now i was carrying them on my key chain simply because i had always carried it. all they did was ③made my pocket heavier. some traditions are like those keys. they are the things we do ④that don’t really serve a purpose anymore, but we keep ⑤carrying them on anyway. it’ time to pull the useless keys off the key chain and only carry the keys that serve a purpose.
답은 3번 (to)make 인데4번 문장구조가 궁금합니다.그것들은 정말 더이상 도움이 되지 않는데 우리가 하는 것들이지만 어쨌든 우리는 그것들을 계속 수행한다.4번이 관계대명사 that 이고 앞의 the things 선행사이고 the things 다음에 관계대명사 가 생략되어 있는 건가요부탁드려요