Question

―Isn’t it hard to drive downtown to work?
—Yes, that’s why I ________ to work by train.

A．have been going	B．have gone
C．was going	D．will have gone

Answer 1

A。

前者问：“开车去市区很难吗?”后者说：“是的，那就是我坐火车去上班的理由。”显然坐火车去上班的动作发生在过去持续到现在并将持续下去，应用现在完成进行时。