topic for my linguistics's research

Hi all ^^
I've been looking for a topic related to linguistics to write about . This is my last year and in my subject senior capstone , we have to choose something to talk about either by making an experiment related to the language or by finding articles about it and talking about it :). I found many topics about pragmatics but since they are many I could not know what to choose. Anyways , is there anyone here is willing to suggest for me any topic :)
Your answer would be appreciated ^^
Thanks in advance

:lol: well , I guess many viewed this thread but no reply !! it is fine 8-)
I found a topic which is about " INTERLANGUAGE AND ERROR FOSSILIZATION " , does it sound a good one ?