请教一个语法知识点：
问题描述：
请教一个语法知识点：
There ____a meeting tomorrow afternoon.
A.will be B.will have C.are going to be D.is going to have
There is going to _____a meeting tomorrow.
A.be B.have C.will be D.has
答
是 There _____will be ________ a meeting tomorrow afternoon.
这道题用的是 there be 句型.因为是 tomorrow afternoon.将来时所以 用will be.
下一道题 There is going to _______be_______a meeting tomorrow.
tomorrow 也是表将来 .be going to = wiil be (还等于 be doing .进行时态表将来）
因为是将来时则 be going to + v.原型嘛 所以接 be .
（will 和 be going to 不能同时一起用
have/has 用于某人有什么东西 主语通常是人）