（1）I never come to school by subway.
I never take the subway to school.
（2）I seldom walk to school.
I seldom go to school on foot.
(3) Maria sometimes takes the subway home.
Maria sometimes goes home by subway.
(4) Li Xiang often rides a bike to school.
Li Xiang often goes to school by bike.
(5) We usually go to the park on foot .
We usually walk to the park.
(6) They always go to the zoo by bus.
They always take a bus to the zoo.