So I futzed around and even switching back and forth to entry exactly as it appears (without space) it is still not accepting any answers that require commas.
The comma that’s in the first line that you posted (that is, 看你并不感到惊讶,你肯定已经知道了) is a Chinese comma. The comma in the second line that you posted (看你并不感到惊讶,你肯定已经知道了) is a normal comma.
These probably need to match in order to have the answer be accepted. What are you using to input Chinese characters?
I am using the windows ime for inputing chinese - like many other users - so for commas I press as always the comma taste on the normal keyboard. One cannot expect zillion users to change their IT devices plus all habits just the fits the moods of memrise
I tried your line of thinking and switched commas to American, still no dice.
In the review screen (of an almost correct word) I even copied and pasted the correct answer from the screen into the answer field - still not accepted.
Since the course I’m studying is my course, I even went in and edited the commas to chinese commas - it STILL doesn’t work
This is definitely not an IME issue. It was working the previous day, now it’s not.