Can the sentence not also start with वह? This was marked incorrect by duolingo?
That is correct also, report it if you see it again
There's no way to report it. It marks it as a 'typo' because it's just one letter different.
Can you also say this without यह or वह?
It is funny to me that duolingo often puts "sib" at the end of incorrect sentences.
Yah Hamara paanchva Ghar hai
This is correct answer.
Its is right sentences