—Kevin, what are you doing? Don’t you remember that the doctor warns you not to eat any candy?

—I’m so sorry! I totally forgot about that. I’m so used to eating candy every Halloween that I didn’t remember this year I wasn’t supposed to. ＿＿＿＿＿

A．	Practice makes perfect.	B．	When in Rome, do as the Romans do.
C．	Old habits die hard.	D．	Time is money.