YOU SAID:

do you know were the arras tunnels are?

INTO JAPANESE

アラストンネルがあったことを知っていますか？

BACK INTO ENGLISH

Did you know that there was an Arras tunnel?

INTO JAPANESE

アラストンネルがあったことをご存知ですか？

BACK INTO ENGLISH

Did you know that there was an Arras tunnel?