Hermit crabs are always looking for a new home Best wishes!

Home. House refers to the actual building, while home refers to a place one lives in.

Derry gave the only fully correct answer.

Thank you all teachers and guys for your comments, I'd rather get your comment not negative points to others.

It seems there are lots of non-educated people on italki. I'm a professional teacher on italki and I am a native speaker, Carla is also a professional Teacher, she also gave you the right answer and she said she agrees with me. Both of us got -3 and -2 negative points. Funny. Huh?