“I didn't verify an assignment
In old platform courses on Signature Track, it’s typically fine to miss verification on one or two assignments, and you won’t need to redo work you submitted before joining Signature Track.
New platform courses require you to verify your identity for every assignment to earn a Verified Certificate. You can repeat the assignment if you aren’t able to verify your work the first time you submit. In these courses, track your progress using the progress indicator at the top of your course outline.”
以上来自Coursera Learner Help Center
另外,建议:
1. 在Coursera相关课程的Discussion Forum里发帖询问;
2. 前往 Coursera 中国官方微信平台
http://mooc.guokr.com/post/614831/ 询问.
希望有所帮助...