While riding in the street .A. someone called me from behindB. my bike broke downC. I hea

问题补充：

While riding in the street, .

A. someone called me from behind

B. my bike broke down

C. I heard my name called

D. an old man knocked down

答案：

A. someone called me from behind

B. my bike broke down

(答案→)C. I heard my name called

D. an old man knocked down

解析： 考查非谓语动词。逻辑主语应与句子的主语保持一致，前半句的意思为：当在大街上骑自行车的时候，根据一致的原则，四个选项的主语只有C项复合语境，所以选C。