--- My bike is broken. May I go yours?
---- Sorry, mine broken down.
A. on, is
B. by, is
C. on, has
D. by, has
网友回答
A. on, is
B. by, is
(答案→)C. on, has
D. by, has
解析：考查情景交际。“我的自行车坏了。我能骑你的去吗？”“对不起，我的已经坏掉了。”“骑自行车”by bike =go to sp on a bike。第一空只能用on，因为by后不能有学生成分，排除B、D。mine和break down之间是主谓关系，故不用被动语态，排除A。故选C。