"Ich esse eine Erdbeere."

Translation: I eat a strawberry.

[JQuesado]

why "eine Erdbeere" and "einen Apfel"?

[blackreggae]

Die Erdbeer Der Apfel. When the apple is the direct complement, then, in place of use ein, you use einen. The Apple (Der Apfel) An apple (Ein Apfel) but; Ich habe den Apfel (I have the apple.) Ich habe einen Apfel ( I have an apple)

[christian]

It's because "Erdbeere" is feminine and "Apfel" is masculine.

http://en.wikipedia.org/wiki/German_articles

edit: "Apfel" is masculine

[Hohenems]

Apfel is neuter? http://goo.gl/NHfYB
Did I just catch you on a bad day? :)

[christian]

Yep, you did. Apologies. :)

[nictheman]

Um okay duolingo. What the hell happened here? http://i.imgur.com/IDCOb9E.jpg