"Grandmother is old and her lower back hurts."

Translation: Бабушка старая, и у неё болит низ спины.

[SpokeMnemosyne]

I typed "Бабушка старая и у неё низ спины болит." and was marked wrong. Does "болит" need to come immediately after "у неё" in this type of construction?

[OlegK.]

No, your answer should have been marked as correct: it's perfectly fine to switch object and subject of a sentence, and it sounds just fine to me, a native speaker.

[SpokeMnemosyne]

Спасибо за ответ!

[Hexchen14]

Спасибо! У меня была самая проблема

[Miroslavka_R]

Да никто не говорит «низ спины», что за безумный перевод?! Поясница!!!

[DanilegoPlays]

Still not accepted :/

[OlegK.]

Да уж, не лучшее предложение для начинающих.

[sonjasorok]

по причине этa проблема следствием возроста бабушки, а не разная справка?

[POCKOCMOC]

Why not "Бабушка старая, а у неё болит низ спины."?

[lyubomirv]

Because there is no contrast here. It is generally considered somewhat normal to have some pains when old. If it was "Grandma is old, and grandpa is not", then you could use а to connect the two clauses.

[geneven]

I'm in my 70s and I don't have a pain in my низ спины.

[deactivated user]

Great.

[Scian4]

Two decades your junior, and I have one slightly lower; he's 21 and just left home... (he's not really a pain... :-*)

[Hatul_Madan]

Может, поясница? (Или, всё-таки, ещё ниже?)

[nhTl818432]

Why not спин? спины is plural, but a granny is supposed to have only one back, right?

[Miroslavka_R]

Спины is not only plural (спИны, an accent in И), but also a singular (спинЫ, an accent in Ы) changed in родительный падеж that is a way like possessive case in English

[nhTl818432]

Ah, got it. спины is a genitive noun that modifies the nominative noun низ, so низ спины literally means "lower part of the back" right?

[Miroslavka_R]

Exactly. Though native speakers don’t really use the phrase “низ спины” in sentences like the example one; we use the word “поясница” instead.

[chsemyonova]

Бабушка старая, и у неё болит низ спины.
^This is my answer, copied and pasted.

Бабушка старая, и у неё болит низ спины.
^This is the Translation, copied and pasted.

Am I crazy, or is there some kind of glitch? Because I cannot find my error.

[OlegK.]

You're not going crazy, it's just a glitch. Quite frankly, I'd vote for removing this sentence from the lesson altogether. I feel that it adds little value and plenty of confusion.

[lyubomirv]

Why can't I use стара here, instead of старая? As far as I remember, we were thought that when there is an expression of the form X is ADJ, we need to use the short form of the adjective. So, why is it not allowed here?

[OlegK.]

You most definitely can use the short form of the adjective here, it should be an accepted answer.

[Vlad798428]

Бабушка старая и низ её спины болит - this is a more beautiful written frase

[Yorgovann]

Still not accepted ...