why not的用法he refused me,and I asked him why.此处能不能用why not还是why not只能用于疑问句中吗?
问题描述：
why not的用法
he refused me,and I asked him why.
此处能不能用why not
还是why not只能用于疑问句中吗?
答
why not只能用于疑问句中 why not do sth.