"Her school is behind your house."
Translation:उसका स्कूल आपके घर के पीछे है।
Iska javab "uska vidyalaya aapke ghar ke piche hai" bhi hona chahiye. (The answer should also be "uska vidyalaya aapke ghar ke piche hai")
So far, I haven't come across this word - vidyalaya - in this course so why should it be included?
Vidyalaya is a native Indic word which literally means 'abode of education' (Vidya- education and ālaya- abode). It's derived from Sanskrit. All Indic languages have this popular word. Hope mine answers your query.