Hi belex24
It is the ja quickcontact module and you can find test to translate in this file
/templates/ja_onepage/html/mod_jaquickcontact/default.php at line 74
<?php echo $params->get( 'show_term_text' , 'We have read and agreed with <a href="#">Terms of use</a> and <a href="#">privacy policy</a>'); ?>
Regarding re-captcha not appearing it is because ja quickcontact needs of a plugin installed, i installed it for you , simply fill in your recaptcha key and enable it , it is the Content - CAPTCHA plugin with ID = 10030
Hope it helps