"A piros alma a fekete autóban van."

Translation: The red apple is in the black car.

[SedatKlc]

can we take out van?

[96314081311257]

No, we can't. "A fekete autóban" is like an adverb here, you always need van in such cases.

[SedatKlc]

köszönöm szépen

[Leikesteve]

Frustrating!!!!!!!!!! Good answords with typos are wrong!! I am not learning english but hungarian don' t you understand that?

[RyagonIV]

The computer has to check somehow that you made a right translation and didn't just mash random buttons. :)

Usually Duo gives you leeway of one misplaced letter per word. Unless that makes you accidentally spell a different actual word in which case it counts as a wrong translation.