How can I add a captcha to my woocommerce reviews page

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I would like to manually approve reviews as I do not want a login page on my site , to avoid bots how can I add a captcha?

https://preview.redd.it/dkip420qluwc1.png?width=953&format=png&auto=webp&s=163dd877d6061b30e9a8ed8f1d4d2078a0fefaf0

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