Originally Posted by
JPDM
You tutor is used to your (bad) mandarin. He/she will correct you if it is a good teacher. But he knows what you vocabulary is, and can figure it out. Once you go out in the real world, it's a different story. My girlfriend understands me very well. Her parents have no clue what I am saying most of the time.
Super important. Tell your tutor to correct your mistakes. Chinese teachers (the Chinese ones) are notorious for telling you your madarin is excellent (or at least not bad) when it is horrible.