Show Page’s content to another page or anywhere in your theme. Use PHP code and make it to show in your WordPress’s Website.
Code
<?php
// query for the about page
$your_query = new WP_Query( 'pagename=contact-us' );
// "loop" through query (even though it's just one page)
while ( $your_query->have_posts() ) : $your_query->the_post();
the_content();
endwhile;
// reset post data (important!)
wp_reset_postdata();
?>
How to DO
First of all open your active theme’s page.php. Then paste code and change highlighted work of which page’s content you want to show. Then SAVE page.php.