Copy the codes below and paste them to your theme where you want to display recent posts:

				     < ?php
    global $wpdb;

    $sql = "SELECT DISTINCT ID, post_title, post_password, comment_ID,
    comment_post_ID, comment_author, comment_date_gmt, comment_approved,
    comment_type,comment_author_url,
    SUBSTRING(comment_content,1,30) AS com_excerpt
    FROM $wpdb->comments
    LEFT OUTER JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID =
    $wpdb->posts.ID)
    WHERE comment_approved = '1' AND comment_type = '' AND
    post_password = ''
    ORDER BY comment_date_gmt DESC
    LIMIT 10";
    $comments = $wpdb->get_results($sql);

    $output = $pre_HTML;
    $output .= "\n
";
    foreach ($comments as $comment) {

    $output .= "\n
".strip_tags($comment->comment_author)
    .":" . "ID) .
    "#comment-" . $comment->comment_ID . "\" title=\"on " .
    $comment->post_title . "\">" . strip_tags($comment->com_excerpt)
    ."

";

    }
    $output .= "\n
";
    $output .= $post_HTML;

    echo $output;?>

I hope this tip is useful for you!