Google Recpatcha not displaying in China

I have a clients website ( that is using WPML translations to show in three languages. English, German, and Chinese.

I just found out that the Google recpatcha does not display in China, due to Google being banned in the Country of China.

Which also means that my clients Chinese forms are not being submitted properly.

I need to make it so the English and German forms use the Google Recpatcha, but the Chinese language uses an alternate challenge method that is allowed in China. Does anyone have any ideas and what that challenge method should be?

Right now I have one set of forms for all three languages, I am assuming that I need a seperate form for chinese so I don’t have the google recaptcha in there, I am just not sure what to use instead. I am looking for anyone with experience dealing with Chinese sites and form challenges. Thank You in advance!