YOU SAID:
Which math textbook will the professor use today, Bob?
INTO JAPANESE
今日、教授はどの数学の教科書を使用しますか?
BACK INTO ENGLISH
Which math textbook do you use today?
INTO JAPANESE
今日はどの数学の教科書を使いますか?
BACK INTO ENGLISH
Which math textbook do you use today?
You've done this before, haven't you.