题目内容：

是have a problem doing还是have problem doing,要说原因哦 有没有have problems doing
有的话,跟have a problem doing 有什么区别

优质解答

have a problem doing 或 have problems doing
区别很简单,就是一个问题还是多个问题
i have a problem eating nuts because i have no teeth.
i have problems eating nuts because i have no teeth and i have severe reactions to nuts.
不能说have problem doing.英文中可数名词前一般必须加冠词