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Marina Nikolajeva

Marina Nikolajeva tarafından gerçekleştirilen son faaliyetler

How do I know the course is finished?
1. Topluluk
2. General Khan Academy Questions
I complete the Ap physics 1 course, took the course challenge and mastered all the points (100%). Still it offers me to take Course Challange next. I don’t see any notification similar when you ma...