Family members of 9/11 victims gathered with American officials at the Pentagon this week for a gronndbreaking ceremony, marking the beginning of construction on 9/11 _______. (A)tragedy (B)legislation (C)memorial (D)impression
應該成: Family members of 9/11
victims gathered with American officials at the Pentagon this week for a groundbreaking ceremony, marking the beginning of construction on 9/11
_______