Student or Learner
should I say that a tunnel runs from one city to another or should I say that it goes?
what is the most appropriate for academic english?
You should write none of those things unless you capitalise the first letter of every sentence and every proper noun, and put a punctuation mark at the end of every sentence. Please click on Edit Post, correct those errors, then click Save.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.