Back when I was a student, I can recall my nonnative English teachers -- after discussing a certain word, or phrase, or passage from a text with the class -- saying for me or some other guy to please "carry on" (with the reading).
Now, what I wish you could tell is if "to carry on" has any currency in AE usage in the sense "to proceed with something after a stop"? Or is this usage typically BE, and an American somehow would be more likely to say instead something like "you may (or can) go ahead", "you can go on", or "you can proceed" with a certain task?
If indeed "carry on" is sort of more typical of BE than AE in this sense, how do Americans usually use that expression?
http://dictionary.reference.com/browse/carry+on?s=t
http://dictionary.reference.com/browse/go+on?s=t