是have the flu 还是have a flu

得了流感是have the flu 还是have a flu 是have the flu 还是have a flu 患流感英语是have flu还是have the flu还是have a flu have flu还是have the flu? 1.have the flu还是have a flu,还是两者都可以? have the flu与get the flu是区别 heve the flu 可以说成have a flu I have the flu. I have .选什么 1.a flu 2.the flu 3.flu 请问get the flu与have the flu的区别 have the flu,have a cough,have a good time,have a lesson,hav if you have a fever,you might have the flu中为什么用might,不用will