At 14.40 I am normally AT the college refectory / IN the college canteen chatting with my friends, relaxing, eating.
Can the prepositions be interchanged (IN the college refectory / At the college canteen)? If yes, will there be any difference in meaning?
Thanks in advance (can I say "Thanks beforehand"?)
If I were a native speaker of English, I would never shut up. :-)
We don't say "Thanks beforehand" and there is no reason for you to say "Thanks in advance" either. After someone has answered your question satisfactorily, then it is appropriate to say thank you by clicking the Like button.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.