Reported: reading right to left, the arabic question I got was " Omar. _ he [is]" - the period is in the middle of the sentence. Word order for these fill in the blank questions will need to be addressed before this course can leave beta. :-)
(If it helps pinpoint the problem, I'm using the mobile site, chrome browser, android os.)
Best thing to do is to send a bug report to Duolingo here: https://support.duolingo.com/hc/en-us/requests/new
Here's an example of a bug report I've sent: https://imgur.com/user/CcfUk2019/posts
I long ago gave up on any support from the duolingo staff. They have said publicly they don't care what their users think. (I have posted a link elsewhere by their founder saying we don't know what we want and he can get better information on his own.) Here it is for Hsn626796 and others: https://www.entrepreneur.com/article/290664
I correct the language teams who work hard as volunteers and do a good job. The duolingo staff are worthless and only to be tolerated until someone who cares about customers comes along to replace them. I hope for that day.