IF YOU ARE NOT CAREFUL, YOU WILL CUT YOURSELF WITH THAT KNIFE.A. UN...

59.If you are not careful, you will cut yourself with that knife.A. Unless you are careful, you will cut yourself with that knife.B. If you are careful, you will cut yourself with that knife.C. Unless you are not careful, you will cut yourself with that knife.D. Unless you were careful, you will cut yourself with that knife.