问题
选择题
The family _____ on time, but their car had a flat tyre on the halfway.
A．would arrive
B．could arrive
C．must have arrived
D．would have arrived
答案
答案：D
题目分析：句意：这家人本可以准时到达，但是在半路上他们的汽车轮胎瘪了。根据句意：这家人本来可以准时，但是却没有，是对过去的虚拟，用would have done，must have done是对过去的肯定推测，表示“过去一定做了”，所以选D。