Answer was changed after click on "check your score" button

[P_Chanlee]

Dear Torsten
I'm not understand why sometime when I clicked "check your score" button then the selected answer change to the another one. For example, the below question I had selected begin, but when I click on that button the answer which I had selected is changed to be start. Have you heard any cases like this?

I would greatly appreciate it if you didn't ......... up that old argument again.

[Torsten]

Dear P_Chanlee,

Many thanks for your question. When you click on 'check your score', the system shows you the correct answer as well as the answer you selected.

Hope this helps.
Regards,
Torsten

TOEIC listening, photographs: A young woman at the library