Hebrew formatting is off?
I keep getting the answers wrong because 1) I don't have a Hebrew keyboard so I have to copy and paste it from Google or a virtual keyboard, and 2) when I do copy it in, it reverses everything from R-L to L-R (English formatting). Just thought I'd point this out, hope it gets addressed.
I have walked into a similar, if not the same problem - from my Android phone I am unable to get my "fill the blank" answer recognized as correct because the word order in the rest of the sentence (given by Duo) is reversed. Luckily, I can get it done normally on the computer.
Every computer and smart phone in the world can install a Hebrew keyboard. On your smartphone, it will automatically have an onscreen keyboard that you can simply choose the letters from, and computers can put an onscreen keyboard up. Once you've learned the letters well enough, you should learn to locate them on your keyboard and begin to peck until you find the letters. Every system can have a Hebrew keyboard. You just have to install it. And it's free!