I promise I__him this evening and tell him all about it.

题目

I promise I__him this evening and tell him all about it.
a.phone
b.will phone
c.will be phone
d.shall be phone
选哪个?为什么?

答案

b
首先这件事情还没有发生,所以排除a,其次,不是被动语态,排除c,d,所以选b