"The child opens the apple juice."

[BrianDugui]

When is it 'den' rather than das, der, die?

[quis_lib_duo]

(der) Saft = masc. noun; accusative case: (den) Saft

The juice is the direct object of the sentence, hence in accusative case.

[Sherie348622]

Will they eventually teach/explain accusative, nominative.....etc?

[ferno9107]

They explain the grammer and such in the discussion areas. I'm still trying to grasp it myself. It's one of those things that only comes with practice.

[IndiraSinghRo]

i think is too hard

[jdrewy]

can you say den apfelsaft das kind offnet?

[Erin878130]

Verb is almost always 2nd position in a sentence (Dative words send it to the end) if I remember correctly