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

问题补充：

―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

答案：

(答案→)A. have been going

B. have gone

C. was going

D. will have gone

解析：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。