YOU SAID:

Where did you get those thigh high boots?

INTO JAPANESE

サイハイブーツはどこで手に入れたの？

BACK INTO ENGLISH

Where did you get your thigh-high boots?

INTO JAPANESE

サイハイブーツはどこで手に入れたのですか？

BACK INTO ENGLISH

Where did you get your thigh-high boots?