"你有没有兄弟姐妹？"

Translation: Do you have any siblings?

[OKAMOTO_Yusuke]

I think "Do you have siblings?" would be a correct alternative. Reported on Nov. 19, 2017.

[-Benjamin.]

I just reported this too in mid December! Mine was marked wrong for, "Do you have siblings?" Beta is giving me a headache.

[AmyLynJust]

I have also reported this 01/05/2018. I hope they add it as an option soon.

[ZingGot]

Reported 2018-01-22

[Imnuts7]

Accepted now.

[kuyaC]

Ha where's 哥?

[Phil891051]

Let's get rid of 家人 and ask if you have 爸妈哥弟姐妹

[mohitj1505]

"兄" is big brother. Just like in Japanese.

[maartendoc]

兄 (xiōng) = elder brother
弟 (dì) = younger brother
姐 (jiě) = elder sister
妹 (mèi) = younger sister

We also saw:
哥哥 (gēge) = elder brother

[LuKaSi15]

Do you have any brothers or sisters.

[hippietrail]

Yes both with and without "any" should be accepted. "Sibling" is fairly technical in English and not used in daily conversation that much.

[Hsn626796]

兄弟...妹 : all if this is siblings ?

What would singular sibling be ?

[Stephen241623]

The same, I should imagine.

[TroyCurtis1]

"Do you have siblings" should be correct.

[monique692886]

It was accepted now

[TonyBerjaya]

A proper way should be: Do you have siblings?

[PatrickSac9]

Do you have a sibling should have been accepted!

[AnitagnesJ]

"do you have any brothers or sisters?" Should be accepted too :(

[Stephen241623]

“Do you have siblings or not?” is not accepted, for some reason.

[Kate112197]

My Chinese dictionary says that:

" Yíge xiōngdì " = " a brother".