If you ____________ stop smoking, you can only expect to have a

If you ____________ stop smoking, you can only expect to have a bad cough.
A、won’t
B、would not
C、do not
D、can not
【正确答案】：A
【题目解析】：will除了用作表示将来时的助动词外，还可用来强调愿意或不愿意。又如：
If you will would wait a moment , I will fetch the money . (如果你肯/愿意稍等片刻，我就把钱取来。)但是在表示不肯或不愿意时，则只能使用won't，不能使用would not。