It's already 10 o'clock.I wonder how it___that she was two hours late on such a short trip.
问题描述：
It's already 10 o'clock.I wonder how it___that she was two hours late on such a short trip.
A.came over
B.came out
C.came about
D.came up
为什么不是D
came up不也有发生的意思吗？
答
come about发生
她晚了两小时,会发生什么呢?
而come up在这里就不行
补充：那好象是“开始”的意思吧