why do i have a cold and a fever because you ____ enough exercise.A haven't B have no C hadn't D don't have 怎么区别啊,好乱
问题描述：
why do i have a cold and a fever
because you ____ enough exercise.
A haven't B have no C hadn't D don't have
怎么区别啊,好乱
答
选D,解析：A haven't这里是一个现在完成时的时态标志,在这里没有意义；B如果是have no的话,exercise后面还需加个s,所以不选；C在这里是一个过去完成时的时态标志,没有意义,所以也不选；故选D.这句话的意思是：为什么...