—Would you like or shall we go by bus?— I prefer but we have to take a taxi for time is

问题补充：

—Would you like or shall we go by bus?

— I prefer ,but we have to take a taxi, for time is short.

A. walking; to walk

B. to walk; walking

C. walk; to walk

D. walk; walk

答案：

A. walking; to walk

(答案→)B. to walk; walking

C. walk; to walk

D. walk; walk

解析：固定用法。Prefer doing sth意为“更喜欢-----”