"The baby reads this."

Translation: 아기가 이걸 읽어.

[MariosK.Zi]

Is 이걸 the same as 이것을?

[nleconte]

Yes, it is a common contraction.

[UltimetaSy]

이것 -> 이거
이것은 -> 이건
이것을 -> 이걸
이것이 -> 이게

[CooperReid4]

Yes it kinda just gets smashed together the same thing happens with 것은 => 건

[ErinJohnso622169]

Im not sure but i think its an abbreviation.

[SvedishPlumber]

Now say 이걸 읽어 10 times really fast! It ties my tongue in knots

[Shaxton]

Precisely why Duolingo included the sentence, I'm thinking.

[KungKras]

아기가 이것을 읽어 should be accepted?

[UltimetaSy]

.

[Adrian-Michael]

Even though the lesson is about casual speech, super polite sentence constructions like: 이것은 어렵습니다 and 아가가 이것을 읽습니다 should still be accepted.

[Adrian-Michael]

Or, they can be marked wrong as wrong formality level

[RajasDaithankar]

@Adrian - then how would people learn how to speak with casual conjugations?

[DNA917]

Do you mean I am the baby?
Aww, you are so sweet ♥

[Lujine000000]

I'm impressed

[Sarah610755]

나는 창문을 열기 것는 더 걱정해요.