How to connect a shortcode on a separate page?

Installed wordpres. There is a plugin to collect the subscription base. I created a separate page (page subscription) manually.
Downloaded the folder with the files in the root of the site.
The HTML file also lies at the root
The address is obtained like this:
"мой-сайт.ру/подписная-страница.html"

When you insert the shortcode, it is not converted to a form as it should be.
Inserted as a simple shortcode, and fully aroused with
<? but this do_shortcode echo('[id mc4wp_form="157"]'); ?>
July 8th 19 at 15:24
2 answers
July 8th 19 at 15:26
And then suddenly, the shortcode should work on normal html page, which WordPress has nothing to do?

Plus you php code in html page, trying to run?
July 8th 19 at 15:28
Create a template file for pages in the WordPress theme, and paste there your html code. Then create a page in WordPress and give it your template, and your shortcode will be processed.

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