"客厅里没有人。"

Translation: There is no one in the living room.

[BrendanKav1]

There are no people in the lounge room

[BrendanKav1]

There's nobody in the lounge room.
Come on! These are all possibilities.

[ScottEvans89577]

"There is nobody in the living room.", is correct and should be accepted.

[deactivated user]

There is no one in the lounge

[Athina747872]

I feel gratitude towards those who invented Duolingo. During this bizarre period kept me busy while I learned four languages, including my Chinese, which I would not have taken them to such a level! Thank you!!

[Shinya_Taiwan]

"There is not a person in the living room" has not been accepted

[Shinya_Taiwan]

"The living room has nobody." was rejected.