This question already has an answer here:

I've been given two examples:

Niwa ni ki ga arimasu


Kono heya ni wa nani ga arimasu ka?

Why is wa required in the second sentence, but not in the first one?

Thank you in advance!

marked as duplicate by istrasci, BJCUAI, Blavius, Chocolate Jan 26 at 5:08

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Browse other questions tagged or ask your own question.