题目内容：

Many students can enjoy f lunch at school these days.
There is a railway(铁路)_b______ the two cities.

优质解答

Many students can enjoy 【free 】lunch at school these days.
There is a railway(铁路)_【between】the two cities.

追问：

不一定必须是between...and吗？

追答：

当然不是，只要后面是表示两者之间的都可以，and只是其中一种表示方式