YOU SAID:
Is your sister that in the mirror?
INTO JAPANESE
あなたの妹は、その鏡の中ですか?
BACK INTO ENGLISH
Your sister is in the mirror?
INTO JAPANESE
あなたの妹は、鏡の中ですか。
BACK INTO ENGLISH
Your sister is in the mirror?
Okay, I get it, you like Translation Party.