－Im so sorry that you didnt win the skating marathon.－How long you ?－I skated for 5 hou

问题补充：

－Im so sorry that you didn win the skating marathon.

－How long you ?

－I skated for 5 hours.

A. have, been skating

B. were, skating

C. have you skated

D. did, skate

答案：

A. have, been skating

B. were, skating

C. have you skated

(答案→)D. did, skate

解析：句意：你没有赢得滑冰赛，我很难过。你已经滑了多久了？5小时。题中用了I skated for 5 hours表示动词的过去时表示动作在过去发生，所以问的时候也用一般过去时不用现在完成时，故选D