—Can you ride a horse?—Sorry I .But I can ride a bike very well.A. doB. don’tC. canD. can

问题补充：

—Can you ride a horse?

—Sorry, I .But I can ride a bike very well.

A. do

B. don’t

C. can

D. can’t

答案：

A. do

B. don’t

C. can

(答案→)D. can’t

解析：助动词辨析，根据问句can you……，sorry 可知答语总为否，选D，can’t。