---How do your parents usually go to work?---My mother usually goes to work bus while my

问题补充：

---How do your parents usually go to work?

---My mother usually goes to work bus while my father a bike to work.

A. takes, rides

B. take, by

C. by, by

D. by, rides

答案：

A. takes, rides

B. take, by

C. by, by

D. by, rides

解析：考查动词辨析。句意 你的父母如何去上班的？我的妈妈通常乘公共汽车而我的爸爸骑自行车。根据My mother usually goes to work这个句子完整，故缺少介词。while my father a bike to work.这句话中缺少谓语动词，故选D项。