I can not find check button for answer TT

Question

I use ipad pro 11inch display.
I can choose the answer, but I can not find check button on display....
How can I solve this problem.. help me...

(But learning on the web site is okay. I think that this is optimization problem. Help me .)

Answer 1

If your in Ipad, the "check" button is only down the screen and it is colored with "green". Are you talking about the "check" button that is involved with "hints and unlock" ?