It would be "house is what" because "is" would need to be changed to "are".
Answer: Family time
Explanation: Me and my family love watching horror movies, except for my sister. So we would choose about 2-3 horrors movies to watch at night, we would make popcorn, gets drinks, order food. Once we got it all. We would sit on the couch and put on the scary movies as we watched it, we would laugh, scream, and cover our faces. It's really fun watching it with my family, to be honest it was the most fun I ever had. We would hug each other some of up would snuggle up to one another if we were scared. But we loved horror movie night. That's why I love family time
Hope this helps^^
It prevented the Allies from knowing what the Soviets were up to
