What is the point of a 'progress' check which includes words not yet covered in my course?
To test your knowledge, see what you know. I think Duolingo assumes you have learned elsewhere alongside the course.
It may be that the course was edited as it was created and a word previously included was deleted. I haven't experienced this yet, but I would also have found it a bit annoying.
"Bagi siapa kamu laksanakan itu"
Is it wrong because I used "bagi", or is "laksanakan" used improperly here?