After the preposition in (which can be two-way), when indicating a location (no movement), you use the dative case. Haus is neuter → dative = einem . Final Thoughts Studio 21 A1 is a fantastic tool, but a tool alone doesn’t build fluency. Targeted correction transforms passive knowledge into active, error-free communication. Whether you’re working with a private tutor, a language partner, or a self-checking guide, make correction a non-negotiable part of your study routine. Your future B1 self will thank you.
Ich wohne in einem Haus.