IF YOU DON’T HAVE HIS NUMBER, YOU CAN’T PHONE HIM.A. YOU CAN PHONE...

14.If you don’t have his number, you can’t phone him.A. You can phone him unless you have his number.B. You can’t phone him unless you have his number.C. You can phone him unless you don’t have his number.D. You can’t phone him unless you don’t have his number.