You can't get into the hall without a _______ A.permission B.permit C.permitting D.permitted BYou can't get into the hall without a _______A.permission B.permit C.permitting D.permitted B这是为什么呢 我英语不好

You can't get into the hall without a _______ A.permission B.permit C.permitting D.permitted BYou can't get into the hall without a _______A.permission B.permit C.permitting D.permitted B这是为什么呢 我英语不好
You can't get into the hall without a _______ A.permission B.permit C.permitting D.permitted B
You can't get into the hall without a _______
A.permission B.permit C.permitting D.permitted B
这是为什么呢 我英语不好

You can't get into the hall without a _______ A.permission B.permit C.permitting D.permitted BYou can't get into the hall without a _______A.permission B.permit C.permitting D.permitted B这是为什么呢 我英语不好
如果没有a的情况下,A也是正确答案,A是名词：许可 允许的意思
C和D可以不考虑,因为不是名词
B既可以是动词,也可以是名词,只是读音的重度不同,一般是名前动后
permit作为名词是许可证,执照,那么有a的情况下就是说
你没有许可证是不能进大厅的.

前有定冠词a，要用可数名词单数，所以用B，你懂了吗