-How do you usually go to work Miss Green?--I usually go to work foot but sometimes my

问题补充：

-How do you usually go to work, Miss Green?

--I usually go to work foot, but sometimes my bike.

A. on, by

B. on, on

C. by, on

D. by, by

答案：

A. on, by

(答案→)B. on, on

C. by, on

D. by, by

解析：本题考查介词。on foot 为固定词组搭配，表示步行去某地；on one’s bike 骑自行车。句意：——格林小姐，你通常怎么去工作？——我通常步行去工作，但有时骑我的自行车。