问题
选择题
She might have been in time for the train, but she _______late.
A．started
B．has started
C．was to start
D．had started
答案
答案：A
她本来或许会来得及赶上火车，但是她出发晚了。本句but以前是虚拟语气，而but后面的句子表示的是真实的事实；从might have been判断谈论的是过去的事情，所以要用过去时A。