题干
The main road _____ for repairs, so we had to change the route to the downtown.
A：is being closed
B：has been closed
C：was to be closed
D：had been closed
答案(点此获取答案解析）
D
做出重要指示要求各级政府坚持不抛弃、不放弃，权力抢救被困人员。经过紧张而揪心的八天八夜，被困人员中已有115人获救。这表明