1. (2019六上·商丘月考) 将下列句子重新排序，使其成为一段通顺的对话：

a, I often come by subway. Do you come by subway, too?

b, Good morning, Li Nan!

c, That's good exercise.

d, Good morning, Zhou Lin! How do you come to school?

e, No, I don't I often walk.