Unfortunately, that building had been ________ for years when local historians discovered its actual significance to the immigrant community.
Ain existence
Bdisintegrating正確答案
Cappreciating
Dthriving
答案與詳解
"disintegrating" 意為崩壞、朽壞,精確描繪建築物年久失修的負面狀態,完美契合 "Unfortunately" 的語氣,為正確答案。
