Errors in exercises
Have been a happy duolingo participant for the past 18 months. Suddenly I come across an exercise that is totally rubbish. An English sentence, or a badly written English sentence is accompanied by the instruction 'Write this in English'! Has this happened to other users?
I've not encountered that particular error, but the best way to report a problem is to use the report button for each sentence and leave a comment in the sentence discussion.
If it's a sudden pervasive problem, you might try moving this post to troubleshooting.
It hasn't happened to me recently but Duo has tried to tell me that I'm learning English from English before. Are you switching between base languages a lot? If so, maybe log out, clear cookies and log back in.