If you don't have a degree, you don't have a degree. Sounds like CET6 is part of the requirement and you didn't satisfy it. There's no other way of explaining it really. Unless you have a good reason for not completely that.
Why are you getting two masters?? You'd have to do a good job explaining that as well..
No, you cannot. Schools in USA will always ask the question about your undergraduate degree. What you can do is to try to talk to the school about the special situation.