1. jane is a good friend of mine. i (know/ have known) her very well. 2. jane is a good friend of mine. i (know/ have known) her for a long time. 3. "sorry i'm late. how long (are you/ have you been) waiting? " "not long. only five minutes." 4. "how long (do you live/ have you) jived in this house? " "about ten years"