q1) only after the fact did the commander realize that the fire had been unusually quiet and that
his ears had been unusually hot.
-문장이 도치된것은 only가 문두에가서 그런가요 only after가문두에가서그런가요?
only after 는 not until 의뜻인가요?( 밑줄친 문장에는 부정으로 쓰인거같지않은데
did가 왜 나왓는지요?