"The Turkish airplane flies into the city."

Translation: A török repülőgép berepül a városba.

[ExDuoUser]

"A török repülőgép a városba repül" is correct as well. (I reported it, since it was rejected)

[Krisbaudi]

Still marked wrong!

[Krisbaudi]

Is the first sentence used in this way? a varosba be? The second one sounds much more natural.

[Findil]

What do you mean by first and second sentence?

[Krisbaudi]

The two possible answers which are given from Duolingo.

[mizinamo]

They are picked at random. We can't see them. And the next time you have this sentence as a multiple-choice question, the sentences will almost certainly be different.

So if you want to ask about multiple-choice questions, you should post the whole sentence, otherwise nobody knows what you are asking about.

[Krisbaudi]

o.k. :-)
Something like: A török repülőgép repül a városba be.

[Krisbaudi]

A török repülőgép repül a városba be.
This correct answer sounds still strange to me.

[Findil]

It's correct. Not the most common word order, but correct nonetheless. A török repülőgép is the focus of the sentence ("It's the Turkish airplane and not something else that..."), and into is also accentuated.